text1 stringlengths 7 2.5k | labels stringlengths 9 100 |
|---|---|
The malware’s second functionality is to gain persistence on an infected machine. After obtaining persistence, the next functionality of Linux Rabbit is to brute force SSH passwords which ultimately allows the malware to install the cryptocurrency miner onto the server. The SSH brute forcing begins by the malware first... | ['T1033'] |
txt,log} and is also a "cryptojacker," which is a tool that uses a victim’s computer to mine cryptocurrency | ['T1056.001', 'T1557'] |
1) Communicate with the C2, try to forward ports with UPnP and determine available ports and report them to the C2. The usual C2 communication protocol used here is HTTP POST RC4-ciphered JSON data. Instead of saving the downloaded file, QakBot measures the download speed and deletes the received file. 3) Set up extern... | ['T1071.001'] |
To start, the implant looks for the AHNLAB V3 Antivirus software's class name "49B46336-BA4D-4905-9824-D282F05F6576". If the software is found, the implant will hide the AV software window from the view of the infected user | ['T1564.003', 'T1562.001'] |
Exfiltrated data is encrypted using an RSA public key, preventing third parties from decrypting it. An example exfiltration request is below | ['T1027'] |
Poseidon utilizes a variety of tools. This tool appears to be designed to operate on high-value corporate systems like Domain Controllers or IIS servers that act as repositories of valuable information, particularly for lateral movement. The Information Gathering Tool (IGT) tool is coded in Delphi and includes powershe... | ['T1049'] |
REDBALDKNIGHT’s use of steganography isn’t limited to Daserf. Based on their pdb strings, they’re both components of another REDBALDKNIGHT-related threat, XXMM (TROJ_KVNDM), a downloader Trojan that can also act as a first-stage backdoor with its capability to open a shell. While xxmm2_builder allows REDBALDKNIGHT to c... | ['T1001.002'] |
Daserf — This backdoor has the functionality of a remote shell and can be used to execute commands, upload and download data, capture screenshots, and log keystrokes. xxmm (also known as Minzen) — This RAT and likely successor to Daserf AES-encrypts HTTP communications using a one-time encryption key. As of this public... | ['T1027.001'] |
cmd /c tasklist: Executes this command to collect a list of running processes on victim’s machine and store them in a tmp file | ['T1005', 'T1082'] |
The malware will actually search through the /Users/ folder looking for executable files. When it finds one, it will prepend malicious code to the beginning of the file. This means that when the file is executed, the malicious code is executed first. That code will then copy the legit file content into a new, invisible... | ['T1036.005', 'T1554'] |
APT19 leveraged Rich Text Format (RTF) and macro-enabled Microsoft Excel (XLSM) files to deliver their initial exploits | ['T1566.001'] |
Current variants will often drop or retrieve secondary executables to inject into, or they will attempt to inject into known (and vulnerable) binaries already present on targeted hosts | ['T1055'] |
As described in the analysis of the group’s previous macOS backdoor, a clientID is created. This identifier is the MD5 hash of the return value of one of the following commands | ['T1082'] |
The C2 domain used in this shellcode has been categorized as malware in DNS Security, URL Filtering and WildFire, which are security subscriptions for Next-Generation Firewall customers. App-ID, the traffic classification system in Next-Generation Firewalls, is capable of identifying applications irrespective of port, ... | ['T1571'] |
Figure 3: The first step of decryption will perform XOR on one byte using the previous adjacent byte, starting from the last byte and excluding the first byte | ['T1140'] |
Once the malware was persisted and kicked off the launch items, it invokes a function named create_rescue_executable to create yet another copy of itself. This copy will made in the user’s Library directory. Its named starts with a . so that it won’t show up in the UI (i.e. Finder.app), and is then followed via 9 rando... | ['T1564.001'] |
The OilRig group remains highly active in their attack campaigns while they continue to evolve their toolset. In both attacks, the OilRig group attempted to deliver a new Trojan that we are tracking as OopsIE. The January 8 attack used a variant of the ThreeDollars delivery document, which we identified as part of the ... | ['T1059.003'] |
Execute Pluginhost.exe, the plugin management component. Save the payloads as Alternate Data Streams and set scheduled tasks to run them | ['T1564.004'] |
Upon execution, GoldMax retrieves a list of the system’s network interfaces; the malware terminates if it is unable to do so or no network interface is configured. It then attempts to determine if any of the network interfaces has the following hardcoded MAC address: c8:27:cc:c2:37:5a | ['T1016'] |
As with much of the malware distributed by TA505, The Trick has appeared in frequent, high-volume campaigns. The campaigns used a mix of attached zipped scripts (WSF, VBS), malicious Microsoft Office documents (Word, Excel), HTML attachments, password-protected Microsoft Word documents, links to malicious JavaScript, a... | ['T1027', 'T1204.001', 'T1204.002'] |
As a Windows Management Instrumentation (WMI) client application, it initializes COM and connects to the \\root\cimv2 namespace to use the IWbemServices pointer and make WMI requests. The code executes wql queries (“wql” is “sql for wmi”, a subset of sql) to gather victim host details, like the query “SELECT Descriptio... | ['T1047'] |
Cisco Talos' previous research has mainly linked this group to CrimsonRAT, but new campaigns show they are expanding their Windows malware arsenal with ObliqueRAT. The victim is encouraged to click on an embedded URL hosted on sharingmymedia[.]com, which then downloads ObliqueRAT, the trojan discovered by Talos in 2020... | ['T1204.001'] |
The back door Java file uses a custom class loader that loads encrypted class files (named Opcion[1-14]) as it receives commands from the RAT controller server. The key, specified by the attacker when creating the back door, is used to encrypt the class files using DES as a stream cipher | ['T1027'] |
The results are Gzipped and saved under random file in the temp folder. Following successful collection of information, the data is send back to the C2 and the file is deleted | ['T1074.001', 'T1560.001'] |
Below is an example of anti-analysis technique showing the loader checking if the victim system is a Vmware or VirtualBox VM | ['T1497.001'] |
POWRUNER may also receive batch commands from the C2 server to collect host information from the system. An example batch command is provided in Figure 11 | ['T1069.002', 'T1069.001', 'T1087.002'] |
First, just like the Gh0st in the dshell paper from SANS, the decrypted protocol consists of a 5 byte header (ngLGX), a 4byte packet length field, and finally another 4 byte uncompressed length field. This is where the similarity ends as the Opcode and the data are compressed using ZLib, instead of just the data. Addit... | ['T1132.001'] |
Attackers like to use spear-fishing email with password protected RAR attachment to avoid being detected by the email gateway. Decryption password is provided in the mail body and inside the attachment it is a MHTML macro based document with the .doc suffix. Its purpose is to implant Imminent backdoor and gain a footho... | ['T1027'] |
This cabinet file is then extracted to the previously identified file path. Again, a shortcut file is written to the %TEMP% path with a name of ‘~Update.lnk’, which is in turn copied to the identified startup path with a filename of ‘Windows help.lnk’. This shortcut file calls the built-in ‘control.exe’ utility to in t... | ['T1012'] |
Persistence with BITS UBoatRAT achieves persistence by using Microsoft Windows Background Intelligent Transfer Service(BITS). BITS is a service for transferring files between machines. Though the most famous application using the service is Windows Update, other applications or users can take advantage of the component... | ['T1197'] |
It moves the property list (plist) file com.dorusio.pkg.wallet.plist from the Installer package to the /Library/LaunchDaemons/ folder (Scheduled Task/Job: Launchd [T1053.004]). Because the LaunchDaemon will not run automatically after the plist file is moved, the postinstall script launches Dorusio_upgrade and runs it ... | ['T1543.004'] |
The group extensively uses long-running strategic web compromises[2] (SWCs), and relies on whitelists to deliver payloads to select victims. In comparison to other threat groups, TG-3390 is notable for its tendency to compromise Microsoft Exchange servers using a custom backdoor and credential logger | ['T1189'] |
Both variants of the BitPaymer malware feature multiple techniques to hinder analysis. The malware developers have employed a combination of encrypted strings, string hashes and dynamic API resolution to ensure that no strings exist in the binary | ['T1106'] |
Ramsay implements a decentralized way of storing these artifacts among the victim’s file system by using inline hooks applied on two Windows API functions, WriteFile and CloseHandle | ['T1106'] |
The VBScript also uploads the output of the provided batch scripts to the command and control (C2) server, which provides threat actors a functional remote shell to the system | ['T1119'] |
The malware collects loads of sensitive data, which are then temporarily stored in files and deleted after they have been successfully uploaded to the C&C servers. Even the deleted files can, however, be recovered by an experienced system administrator, which could help further investigation of the attack – after t... | ['T1070.004'] |
It uses virtualization software – QEMU on macOS and VirtualBox on Windows – to mine cryptocurrency on a Tiny Core Linux virtual machine, making it cross platform. The admins of the site also frequently update the applications with newer versions, making it difficult to track the very first version of the miner. 2) Shel... | ['T1569.001'] |
Kimsuky is a highly motivated threat actor targeting a number of entities in South Korea. This group has been relentlessly creating new infection chains to deliver different types of malware to their victims. This campaign relies on the abuse of Blogspot to host attacker-operated blogs serving malicious VB based script... | ['T1608.001'] |
If the user opens the file and the exploitation is successful, a backdoor Trojan is installed on the system that gives the attacker access and a decoy document is displayed to the victim. The main module is also responsible for communicating with its C2 servers and handling commands issued by the C2 server. Figure 8: F... | ['T1083'] |
So far, our telemetry hasn’t provided any concrete evidence that shows us how the Remexi malware spread. However, we think it’s worth mentioning that for one victim we found a correlation between the execution of Remexi´s main module and the execution of an AutoIt script compiled as PE, which we believe may have droppe... | ['T1059.005'] |
Second technique: FIN6 also leveraged the creation of Windows services (named with a random 16-character string such as IXiCDtPbtGWnrAGQ) to execute encoded PowerShell commands. The randomly named service is a by-product of using Metasploit, which creates the 16-character service by default. The encoded command contain... | ['T1059.001'] |
PowerShell Cobalt Strike Beacon - New payload + new C2 domain - PowerShell Obfuscator - All the new PowerShell payloads are obfuscated using a publicly available script adapted from a Daniel Bohannon’s GitHub project. Using this tool, the attackers could overcome a password reset. Customized Windows Credentials Dumper ... | ['T1552.002'] |
During the first C&C call, the backdoor sends a pack with the victim’s system information. All further information sent to the C&C is encrypted with a public key framework, making decryption impossible. The commands from the C&C are encrypted in a simpler manner and can be decrypted if intercepted because t... | ['T1012', 'T1560'] |
Each payload comes compiled with a standard list of commonly used Monero-mining domains alongside a Monero wallet address. So far, we’ve identified two wallet addresses used by Blue Mockingbird that are in active circulation. Due to the private nature of Monero, we cannot see the balance of these wallets to estimate th... | ['T1027'] |
Certutil is a living-off the land command line utility that can be used to obtain certificate authority information and configure certificate services. Threat actors usually utilize certutil to download remote files from a given URL. It also incorporates a built-in function to decode base64-encoded files | ['T1140'] |
In the first campaign, the email (Figure 1) purported to be from FinCERT [8] with the subject “Памятка по информационной безопасности” (Information Security Notice) and contained a Microsoft Word attachment named “сводка1705.doc” (report1705) (Figure 3). - Another email (Figure 2) purported to be from Security Support ... | ['T1566.001'] |
Web inject – the configuration file for the hooking module Once communication with the C2 is established, one of the additional modules that is downloaded is the web-inject module. It intercepts the victim’s traffic by injecting the module into the browser’s process and hooking the network API. The hooking module gets ... | ['T1185', 'T1059.007'] |
My blog post, “Remote Mac Exploitation Via Custom URL Schemes”, describes the technical details of how WindShift (ab)used custom URL schemes to infect macOS systems | ['T1189'] |
Executive summary . The PROMETHIUM threat actor — active since 2012 — has been exposed multiple times over the past several years.. However, this has not deterred this actor from continuing and expanding their activities. Talos could not pinpoint the initial attack vector, however, the use of trojanized installation fi... | ['T1204.002'] |
One, called "frown.py," is responsible for the communications with the command and control (C2). It uses TLS to encrypt the communication that occurs on port 143. With a successful connection, it will send the word "almond" The server should reply either with "who" or "ice. The RAT will answer the "who" command with a ... | ['T1033'] |
APT15 then used a tool known as RemoteExec (similar to Microsoft’s Psexec) in order to remotely execute batch scripts and binaries | ['T1569.002'] |
At the end of August 2018, the Sednit group launched a spearphishing email campaign where it distributed shortened URLs that delivered the first stage of Zebrocy components. In the past, Sednit used a similar technique for credential phishing. However, it is unusual for the group to use this technique to deliver one of... | ['T1218.011'] |
After the exploit succeeds, this Fallout Exploit Kit downloads a “.tmp” file to the %Temp% directory and calls CreateProcess to execute it. Further analysis revealed that the “.tmp” file was the latest variant of Azorult malware. It was the first time we’ve seen the new variant of Azorult malware used as primary payloa... | ['T1105'] |
In at least one engagement, we observed Blue Mockingbird seemingly experimenting with different tools to create SOCKS proxies (T1090: Proxy) for pivoting. These tools included a fast reverse proxy (frp), Secure Socket Funneling (SSF), and Venom. In one instance, the adversary also tinkered with PowerShell reverse TCP s... | ['T1059.001'] |
When initially executed, the malware will check its current working directory. Should it not match the expected path, Cardinal will enter its installation routine. Cardinal RAT will copy itself to a randomly named executable in the specified directory. It will then compile and execute embedded source code that contains... | ['T1027.004', 'T1012', 'T1083'] |
A custom executable that only contains the Metasploit shellcode. It is saved to C:\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msupdateconf.exe, granting the executable persistence. Another custom executable used to execute PowerShell scripts. The Mosquito JScript backdoor that ... | ['T1547.001'] |
It communicates encoded system information to a single hard coded command and control (C2) server, using the system’s default User-Agent string. BUGJUICE is a backdoor that is executed by launching a benign file and then hijacking the search order to load a malicious dll into it. That malicious dll then loads encrypted... | ['T1574.001'] |
The ransomware also stops security software-related processes to evade detection and termination of its malicious activities | ['T1518.001', 'T1562.001'] |
Later, the attackers are observed executing an HTA file hosted on a remote server by abusing mshta.exe via depended.exe. The Mshta utility can execute Microsoft HTML Application (HTA) files and can be abused to bypass application control solutions. Since mshta.exe executes outside of Internet Explorer's security contex... | ['T1218.005'] |
APT40 uses a variety of malware and tools to establish a foothold, many of which are either publicly available or used by other threat groups. In some cases, the group has used executables with code signing certificates to avoid detection | ['T1553.002'] |
Temporary audio and video files are stored within the audio and video sub-folders respectively. After a call is finished, this data is compressed and encrypted using the same techniques previously witnessed. These files are stored in randomly named .dat files within the Skype folder | ['T1123', 'T1125'] |
During the investigation we discovered that the Responder tool was executed from one of the victim machines that had received the spear-phishing document. One day after the initial infection, the malware operator placed the tool onto this host and executed it using the following command | ['T1204.002'] |
The attackers used the famous Mimikatz credential dumping tool as their main tool to obtain credentials including user passwords, NTLM hashes and Kerberos tickets. Mimikatz is a very popular tool and is detected by most antivirus vendors and other security products. Therefore, the attackers used over 10 different custo... | ['T1588.002'] |
Editor’s note: Following publication of this blog, it came to our attention that AhnLab encountered what appears to be an earlier version of SDBbot, described in their recent Q3 ASEC Report as a “malicious SDB file. AhnLab describes delivery of the malware in South Korean campaigns as a secondary payload to the FlawedA... | ['T1204.002'] |
This DLL is used for decrypting and executing another JavaScript backdoor such as Orz. The DLL is registered by the installer using regsvr32. If the string “DR” is passed as an argument, or if the DLL is running in the active session with a username that is not “system”, the final JavaScript backdoor is decoded using a... | ['T1140'] |
The ‘vac.dll’ DLL file is signed with a valid, legitimate digital signature, although the file has been tampered with. At first glance, the fact that its digital signature is valid would suggest the file has not been manipulated after being digitally signed | ['T1553.002'] |
Ultimately, the XLS writes two files to disk, one of which -- the BAT -- immediately modifies some system settings and creates two scheduled tasks. However, this behaviour may not be enough to determine the components as malicious. Only after 20 minutes will the task scheduler execute the VBS downloader component and l... | ['T1053.005'] |
CTU researchers have observed BRONZE PRESIDENT targeting multiple NGOs. The threat actors steal data from compromised systems over a long period of time, which likely indicates a long-term objective of monitoring the target's network. BRONZE PRESIDENT uses custom batch scripts to collect either specific file types (inc... | ['T1119'] |
The malware calls User32.dll's GetKeyboardLayoutList function, inspects the keyboard identifier, and returns true if the result ends in a value between \x18 thru \x44 inclusive. This result means the compromised host is whitelisted based on the host's configured keyboard layout. The malware inspects only the lower byte... | ['T1082'] |
The malware checks the language of the machine with function “GetUserDefaultUILanguage” and saves the value in the stack; it is not checked automatically after the call, but it is important later | ['T1614.001'] |
Next, it checks the running processes against a list of hard-coded process names; if any are found, the machine is forcefully rebooted. The names are linked to various tools used by malware researchers | ['T1057', 'T1518.001'] |
In the obfuscated and packed version of the loader, an uncommon API call is used to facilitate code injection. As seen in the image below, the loader uses VirtualAllocExNuma to allocate new memory and store the returned base address. The beginning of an obfuscated shellcode is copied to this address after being decrypt... | ['T1106'] |
The macro then creates a scheduled task named SecurityAssist that runs after waiting one minute. OopsIE Trojan Analysis The OopsIE Trojan delivered in these attacks is packed with SmartAssembly and further obfuscated with ConfuserEx v1.0.0. hex(Environment.UserName/Environment.MachineName)> The Trojan will issue a r... | ['T1053.005'] |
After executing the sample, we noticed the sample copied itself to a hidden folder and launched from the hidden folder. This is a good first step to hide itself from casual observation on disk | ['T1564.001'] |
Qakbot has anti-analysis and anti-virtual machine checks. It will not continue to execute if any of the following exists in the system | ['T1497.001'] |
Unlike recent variants of Mirai and Gafgyt that target vulnerable Linux systems via randomly generated IP addresses, Xbash also scans and trawls through domain names. Hadoop’s unauthenticated command execution flaw discovered in October 2016, as well as the Redis arbitrary and remote command execution vulnerability dis... | ['T1110.001'] |
BITSAdmin tool - Win32 apps BITSAdmin is a command-line tool that you can use to create download or upload jobs and monitor their progress. Using BITS - Win32 apps Using BITS - bitsadmin examples Examples showing how to use the bitsadmin tool to perform the most common tasks. Background Intelligent Transfer Service - W... | ['T1570'] |
Talos has identified two different infection vectors associated with this particular campaign. The first vector relies on a trojanized document that fetches a remote template and then uses a known exploit. In the first scenario, Talos discovered a document named "MinutesofMeeting-2May19.docx", that appeared to display ... | ['T1053.005'] |
After this it will destroy all shadow volumes of the victim machine and disable the protection of the recovery boot with this command | ['T1490'] |
The command in Figure 8 downloads and launches code within an SCT file. The SCT file in the payload (MD5: 1554d6fe12830ae57284b389a1132d65) contained the code shown in Figure 9 | ['T1059'] |
Steals Google Chrome and Apple Safari browser cookies from the victim’s machine - Steals saved usernames and passwords in Chrome - Steals saved credit card credentials in Chrome - Steals iPhone’s text messages if backed up to Mac - Steals cryptocurrency wallet data and keys - Keeps full control of the victim using the ... | ['T1555.003'] |
Look for traffic to any of the related malicious domains identified in Appendix A. Use the signatures provided by FireEye to identify related activity. Make sure all credentials in an organization, including service accounts, are reset following a breach and that default passwords or those similar to previous passwords... | ['T1482'] |
Config.json" is a mining config file for XMRig, an open-source Monero miner. The file sets the mining pool as xmr[.]pool[.]MinerGate[.]com:45700 and the actor's wallet as rocke@live.cn. Lowerv2.sh" and "rootv2.sh" are similar shell scripts that attempt to download and execute the mining malware components "bashf" and "... | ['T1059.004'] |
It uses the Windows service “winmgmts:\\.\root\SecurityCenter2 ” to check all AntiVirus products installed on the operating system. As shown below in the figure, it is done by creating the object the service “ winmgmts:\\.\root\SecurityCenter2 ” and executes the query “ Select * From AntiVirusProduct ” by using the sam... | ['T1518.001'] |
Flagpro v2.0 has another new function. If a dialog title is “Internet Explorer [7-11]” (the number after “Internet Explorer” depends on what version the user users) when Flagpro accesses to an external site, Flagpro sends WM_CLOSE message to close the dialog | ['T1070'] |
The file destruction algorithm is composed of two stages: a first stage to overwrite files and another to destroy the physical disk layout and the partition tables along with it. For the file destruction, it takes ownership of the files by modifying their ACL entries after it has obtained the 'SeTakeOwnershipPrivilege'... | ['T1561.002'] |
BEACON payloads have commonly been executed after moving laterally to new hosts within the victim network. The attackers have employed Cobalt Strike payloads crafted to maintain persistence through reboot via a scheduled task on critical systems in victim environments. In at least once case, attackers have maintained a... | ['T1133'] |
This second request (Encoded Get System Information Request) is encoded using the same method as the custom TCP protocol used for communication with command-and-control servers, which uses a four-byte XOR encoding. Before acting on the request, Winnti will validate the third DWORD contains the magic value 0xABC18CBA be... | ['T1573.001', 'T1205'] |
an executable (also compressed, i.e. zip, rar or cab archive), sometimes pretending to be a different file format, like Dyreza - a document (commonly PDF or some MS Office format ) – like this Dridex downloader | ['T1204.002'] |
After “GetExtendedTcpTable” is executed and the process returns back to the second part of the code, it iteratively checks every record in the returned Tcp table. If any record contains the PID Waterbear wants to hide, it will remove the corresponding record, modify the record number inside the table, and continue to c... | ['T1562.006'] |
The function will then download an encrypted file containing the final payload used in the campaign. The file is encrypted with a custom XOR-based algorithm, with the key 0x0AE2. In the latest versions, the authors moved from encryption to using a base64-encoded ZIP file | ['T1027'] |
When the persistence operation finishes, the loader deletes itself by writing a batch file in the Windows temporary folder with the file name prefix ‘tmp’ followed by random digits. The batch file content | ['T1070.004'] |
We also observed a third approach used by a malicious document file to deliver Hancitor. Although the threat actor and command and control servers are similar to the second Hancitor delivery approach, this one uses an alternate tactic to reach its goal of data theft | ['T1027'] |
As we mentioned, the Bad Rabbit ransomware encrypts a victim’s files and disk. Files are encrypted with the following algorithms | ['T1486'] |
If opened, the dropper runs a loader known as Trojan.Vcrodat on the computer. Whitefly has consistently used a technique known as search order hijacking to run Vcrodat. If no path is provided, Windows searches for the DLL in specific locations on the computer in a pre-defined order. Attackers can therefore give a malic... | ['T1574.001'] |
This turned out to be the best solution, as the Cobalt group set up a controlled botnet in the bank's network which was very difficult to track and even harder to stop. In october 2016 Group-IB published the report about the Cobalt group. Initially the Cobalt group focused on jackpotting ATMs: they launched a program t... | ['T1059.003'] |
2) The directory “out” is created in the user’s %AppData% folder. 5) The screenshot is then copied over to the newly created “out” directory of the system where the batch script was executed. 6) In one instance, DHS observed an “out.zip” file created | ['T1074.001'] |
Similar to many other ransomware operators, CARBON SPIDER not only encrypted victim files using Darkside, but also exfiltrated data for publication on a dedicated leak site (DLS) hosted on Tor. Further, CARBON SPIDER frequently conducted hypervisor jackpotting by encrypting ESXi servers using a version of Darkside spec... | ['T1486'] |
MESSAGETAP is a 64-bit ELF data miner initially loaded by an installation script. Once installed, the malware checks for the existence of two files: keyword_parm.txt and parm.txt and attempts to read the configuration files every 30 seconds | ['T1070.004'] |
OopsIE Trojan Analysis The OopsIE Trojan delivered in these attacks is packed with SmartAssembly and further obfuscated with ConfuserEx v1.0.0. The Trojan extracts and loads this embedded assembly by concatenating the contents of two resources named S1 and S2 and decompresses the resulting data using the GZipSteam clas... | ['T1027.002'] |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.