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The emails first originated from a spoofed sender that impersonated a Meetings Services Assistant at the United Nations General Assembly Secretariat. The threat actor achieved this impersonation by utilizing the legitimate email marketing service SMTP2Go, which allows users to alter the envelope sender field while usin... | ['T1585.002'] |
The new spear-phishing docs used by MuddyWater rely on social engineering to persuade users to enable macros. The attackers rely on a range of compromised hosts to deliver their attacks | ['T1566.001'] |
FANCY BEAR adversary used different tradecraft, deploying X-Agent malware with capabilities to do remote command execution, file transmission and keylogging | ['T1105'] |
The next program sent to victims enumerates all the drives on the infected system and executes the following command on them | ['T1083'] |
Once explorer.exe is running, the service configures the environment and executes the C2 contact module: winprint32.exe. This module is responsible for launching the document search module, contact the C2 and exfiltrate the collected documents | ['T1020', 'T1041'] |
To initially gain access to the environment, Managed Defense analysts identified that FIN6 compromised an internet facing system. Following the compromise of this system, analysts identified FIN6 leveraged stolen credentials to move laterally within the environment using the Windows’ Remote Desktop Protocol (RDP | ['T1003.001', 'T1021.001', 'T1078'] |
Use of Open Source Tools In an attempt to avoid detection and as an anti-analysis tactic, the OilRig group abused an open source tool called Invoke-Obfuscation to obfuscate the code used for QUADAGENT. Invoke-Obfuscation is freely available via a Github repository and allows a user to change the visual representation o... | ['T1059.003'] |
The purpose of this tool is to parse the hard drive for files with a specific extension and create an archive with these files. Afterward, the module will delete old "sft" files assuming they were already exfiltrated. After a pause of 6,500 milliseconds, it will start its search for the targeted files. SFT file creatio... | ['T1083'] |
Cookie Notice . This website uses cookies to help personalize and improve your experience. By Continuing to use this site, you are consenting to the use of cookies. Further research into the IP address hosting the spoofed page revealed a broader campaign to steal credentials. Countries with targeted universities. Sourc... | ['T1583.001'] |
T1566.001: Spearphishing Attachment - T1566.002: Spearphishing Link - T1566.003: Spearphishing via Service - - - T1204.001: Malicious Link - T1204.002: Malicious File - T1059: Command and Scripting Interpreter T1059.005: Visual Basic - T1059.005: Visual Basic - - T1053.005: Scheduled Task - T1129: Shared Modules - T110... | ['T1070.004'] |
After the execution of rundll32.exe, the PowerShell script enu.ps1 is executed. This script is encoded with Base64 in order to avoid detection by antivirus products | ['T1027'] |
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. This configuration file contains the same actor pool and wallet information as the first. If the shell scripts do not download a miner... | ['T1547.001'] |
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. If the shell scripts do not download a miner from 118[.]24[.]150[.]172, they attempt to download a file called "XbashY" from 3g2upl4pq... | ['T1027.002'] |
The ROKRAT author implements several techniques typically seen to frustrate human analysts and avoid sandbox execution. First, the malware does not run on Windows XP systems. The code used to perform this task: The malware checks the process names in use on the victim machine. It compares if the executed process name m... | ['T1057'] |
In this version, a shortcut is created in order to launch winnit.exe in the following path %USERPROFILE%\Start Menu\Programs\Startup\Anti virus service.lnk. As in the previous version, the ID of the infected system is generated with exactly the same method. The C2 is different and the analysed version this time only co... | ['T1547.001'] |
If yes, it generates an RSA PKCS key using CryptGenKey that is used for encryption of communication session keys. It then writes the RSA key to the PRVK key in the [Version] section of the config file. Turla’s Carbon backdoor also implements RSA encryption on the session keys for some of its C&C channels | ['T1573.002'] |
root/.ssh/{id_rsa, id_rsa.pub} – the SSH pair key used to update the miner from the C&C server using SCP. opt/{bootsync.sh, bootlocal.sh} – the system startup commands that try to update the miner from the C&C server and run it (see Scripts 7 and 8 | ['T1105'] |
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. It uses RC4 encryption and custom Base64 encoding to obfuscate HTTP traffic. Datper uses an RC4-encrypted configuration to obfuscate HTTP traffic. xxmm (... | ['T1071.001'] |
Hardcore Nationalist group SideWinder is a threat group active since 2012 according to Kaspersky. This group mainly targets Pakistanis and Chinese military & government entities’ windows machines. They also target mobile phone devices. This is the second time this group is using COVID-19 theme to lure victims, ther... | ['T1204.002', 'T1204.001'] |
The SolarWinds Orion API is vulnerable to authentication bypass that could allow a remote attacker to execute API commands | ['T1203'] |
Grandoreiro’s DGA uses two strings (prefix and suffix) hardcoded in the binary and the local date as inputs. Note that based on the DGA, a different website is required for each day. We have observed some variants also using a custom base64 alphabet | ['T1568.002'] |
WastedLocker will attempt to encrypt files on local as well as remote (network adjacent and accessible) and removable drives | ['T1135'] |
The infection chain starts with an email in which the victim receives a download link that fetches the first-stage downloader. As we found in our analysis, this first-stage downloader is responsible for fetching a malicious MSI file hosted on an attacker-controlled GitHub page. This MSI file is downloaded and executed ... | ['T1566.002', 'T1105', 'T1102.002', 'T1204.001'] |
At the second stage, the attackers remotely connected to the device and scanned the local network seeking to gain access to public shared folders, web servers, and any other open resources. The aim was to harvest information about the network, above all, servers and workstations used for making payments. At the same ti... | ['T1040'] |
As a result of all of the above actions, when attempting to surf the web, the user’s web browser will first ask the attacker web page on TOR for proxy settings. The user traffic is then redirected through a proxy controlled by the attacker, who carries out a Man-In-the-Middle attack and impersonates the various sites t... | ['T1557'] |
After execution, Ragnar Locker Ransomware encrypts the files and adds the extension “.ragnar” and an 8 digit number | ['T1486'] |
When referring to additional plugins, it is worth noting that in early versions of Valak the plugins were downloaded by the second stage JS via PowerShell. More recent versions of Valak abandoned the popular yet easily detectable PowerShell downloader approach and transitioned to PluginHost as a means of managing and d... | ['T1059.001'] |
Controlled by Micropsia operators, the malware is able to register to an event of USB volume insertion to detect new connected USB flash drives. Once an event is triggered, Micropsia executes an RAR tool to recursively archive files based on a predefined list of file extensions (*.xls, *.xlsx, *.csv, *.odt, *.doc, *.do... | ['T1560.001', 'T1119'] |
We were able to source a sample that may be the malware involved in the May 2018 attacks. We ran it, and it broke the boot sector as expected (see Figure 1). An initial analysis of the file revealed it was created using Nullsoft Scriptable Install System (NSIS), an open-source application used to create setup programs.... | ['T1027'] |
In some attacks, Whitefly has used a second piece of custom malware, Trojan.Nibatad. Like Vcrodat, Nibatad is also a loader that leverages search order hijacking, and downloads an encrypted payload to the infected computer. And similar to Vcrodat, the Nibatad payload is designed to facilitate information theft from an ... | ['T1027'] |
Creates a new registry key HKCU\Software\Classes\Folder\shell\open\command - Sets the “Default” value to “path of the malware” - Creates a value “DelegateExecute” and sets the value to “0” - Executes %systemDirectory%sdclt.exe to bypass the UAC as shown below (figure 7 | ['T1112'] |
These two files, keyword_parm.txt and parm.txt contain instructions for MESSAGETAP to target and save contents of SMS messages | ['T1560.003'] |
1) Send initial proxy module request. The initial request contains the bot ID, external IP address of the infected machine, reverse DNS lookup of the external IP address, internet speed (measured earlier) and seconds since the proxy module started. 2) Establish a connection (proxy commands sequence 1->10->11) wit... | ['T1090.002'] |
A technical relevant fact about this campaign is the use of Python embedded into Windows executables of the malware. There is no multi-platform support as the code is heavily Windows-oriented (use of libraries). However, we discovered several clues that the attackers prepared the infrastructure for Mac OS X and Unix vi... | ['T1053.005', 'T1059.006'] |
The second version does not carry the payload directly but instead downloads it from a C2 into the same location as before. The C2 server address is embedded in the main executable in the TinkaOTP bundle. The hardcoded download and execution code are easily visible as they are unencrypted, plain UTF strings in the bina... | ['T1105'] |
Guloader is a downloader that has been active since 2019. It is known to deliver various malware, more notably: Agent-Tesla, Netwire, FormBook, Nanocore, and Parallax RAT | ['T1102'] |
All of the backdoors identified – excluding RoyalDNS – required APT15 to create batch scripts in order to install its persistence mechanism. This was achieved through the use of a simple Windows run key | ['T1059.003'] |
Once communication with the C2 server has been established, QakBot is known to download and use additional modules in order to perform its malicious operations | ['T1095', 'T1105'] |
This DLL has no other noticeable characteristics, as it functions like a typical malicious sideload. After loading the encrypted payload in memory, it transfers the execution to a shellcode that is located at the beginning of the file. Once loaded in memory, the ZeroT shellcode does not present any kind of obfuscation,... | ['T1574.002'] |
One legitimate executable, sometimes signed, and vulnerable to dynamic-link library (DLL) sideloading - One malicious DLL loaded by the legitimate file - One binary file usually containing obfuscated code, unpacked in memory by the malicious DLL | ['T1574.002', 'T1574.002', 'T1574.002'] |
The `Download3rdStage` will first decode `https://discord.com` and try to connect to it. Then, it performs a time-based anti-debug check, as shown in the code below. If any of these checks fail, the DLL will not download the third stage | ['T1497.003'] |
Learn more about our Personal Data Protection PolicyAccept Cookies . DeepMalwareAnalysis . Joe Security's Blog . TrickBot's new API-Hammering explained . Published on: 13.07.2020 As usual, at Joe Security, we keep a close eye on evasive malware. It turned out to be a new TrickBot sample using API hammering to bypass an... | ['T1106'] |
When generating the URLs within the HTTP POST and GET requests, XAgent sets one HTTP parameter using a specific data structure that contains this agent_id value. This parameter transmits the agent_id to the C2 server to obtain commands the actor wishes to execute on the compromised system. The data structure used to tr... | ['T1106'] |
Inception’s malware is modular and the attackers will load plugins based on requirements for each attack. The group has used a range of plugins in recent attacks, some of which are improved versions of plugins used in 2014, while others were previously unseen | ['T1057'] |
When running under a limited UAC account, the installer extracts d3d9.dll and creates a persistence key under HKCU\Software\Microsoft\Windows\Run | ['T1547.001'] |
The process begins with the consistent execution of a malicious DLL using the legitimate regsvr32.exe Windows Utility. Once executed, the DLL is deleted from the system and its components are dropped to the system | ['T1218.010'] |
Following the initial compromise, in many instances the BackdoorDiplomacy group employed open-source reconnaissance and red-team tools to evaluate the environment for additional targets of opportunity and lateral movement. Among the tools documented are | ['T1105', 'T1588.002'] |
Once the library is called by one of the triggering events implemented in its code, it reads a configuration file from a shared Google Document. If it is not able to connect to the address, it uses a hardcoded one | ['T1565.002'] |
Hildegard uses LD_PRELOAD to hide the malicious process launched inside the containers. The malware modified the /etc/ld.so.preload file to intercept shared libraries’ imported functions | ['T1574.006'] |
The threat actor connected via Remote Desktop from a Domain Controller to a vCenter server and opened a PowerShell console, then used the PowerShell command -ep bypass to circumvent the execution policy. Using the Windows Azure Active Directory PowerShell Module, the threat actor connected to the victim’s O365 tenant a... | ['T1087.002', 'T1482'] |
Targets are sent spear phishing e-mails that lead them to a web site displaying a lure document and are immediately prompted to install a malicious Google Chrome extension. It then redirects the user to install a “Font Manager” extension from the Chrome Web Store, as seen in Figure 2. Figure 2: HTML Source of Phishing ... | ['T1176'] |
After the payload execution it reaches out to the C2 via POST request as shown below | ['T1071.001'] |
All RDAT samples have malicious verdicts in WildFire and have protections in place through Cortex XDR. DNS tunneling protocols used for C2 communications are blocked via DNS Security. All C2 domains are classified as Command-and-Control for URL Filtering. AutoFocus customers can monitor activity via the rdat_backdoor t... | ['T1132.002', 'T1132.001'] |
Endpoint Protection . The Trojan.Hydraq Incident . It has been about a week since news of the mysterious Hydraq Trojan (also known as Aurora) attack broke with the unveiling of a threat by Google to pull its operations out of China. In addition the blog also mentioned that a host of other large corporations were also t... | ['T1105'] |
We mentioned earlier that docx files (like xlsx and pptx) are part of the OOXML standard. The document defining this standard[6], describes the syntax and values that can be used as an example. An interesting file to look at is the ‘settings.xml’ file that can be discovered in the ‘Word’ container of the docx zip file.... | ['T1221'] |
FireEye has dubbed the cybercrime gang FIN5. One of the most unique things about FIN5 is that in every intrusion we responded to where FIN5 has been active, legitimate access was identified. They had valid user credentials to remotely log into the network," said Barry Vengerik, principal threat analyst at FireEye. No s... | ['T1110'] |
It looks like GrowlHelper creates an executable named Software Update Check when it thinks it’s online. I was pretty excited when I first found this, but quickly realized it just drops a copy of itself with a different name | ['T1036.004'] |
FireEye assesses APT33 may be behind a series of intrusions and attempted intrusions within the engineering industry. FireEye's Managed Defense has responded to and contained numerous intrusions that we assess are related. The actor is leveraging publicly available tools in early phases of the intrusion; however, we ha... | ['T1555', 'T1003.001', 'T1552.001', 'T1003.005', 'T1555.003', 'T1552.006', 'T1003.004', 'T1588.002'] |
PowerPunch also provides an excellent example of this. The key is applied to an executable payload downloaded directly from adversary infrastructure, allowing for an encryption key unique to the target host (highlighted variables names were changed for clarity | ['T1105'] |
The attackers manually send a command to the JS or C# component to drop and execute a batch file from one of their servers. That batch file writes a malicious INF file and supplies it as a parameter to the Microsoft utility cmstp.exe, which executes a remote scriptlet specified in the INF file. This technique has been ... | ['T1059.007'] |
cmd.exe /C choice /C Y /N /D Y /T 2 & Del After sleeping, the Trojan will create a GUID and write it to %APPDATA%\Windows\GDI.bin. It then moves itself to %APPDATA%\Windows\WindowsImplantment.exe and sets both of these files to have the hidden and system flags to hide them from the user. With the Trojan moved its f... | ['T1105'] |
In october 2016 Group-IB published the report about the Cobalt group. Network penetration In all cases investigated by Group-IB, the Cobalt group used a set of spear phishing emails to gain initial access to the corporate infrastructure. However, some of the email addresses belong to employees that no longer work at th... | ['T1068'] |
The dropped payload is a DLL file that has been packed using the UPX packer. The unpacked sample is highly obfuscated and important API calls and strings have been encrypted using a custom encryption algorithm. Whenever in the code the malware needs to use a string, it takes the encrypted string and passes it into two ... | ['T1027.002'] |
This document likely marks the first observed use of this technique by APT28. The use of DDE with PowerShell allows an attacker to execute arbitrary code on a victim’s system regardless whether macros are enabled | ['T1559.002'] |
POWERTON is a backdoor written in PowerShell; FireEye has not yet identified any publicly available toolset with a similar code base, indicating that it is likely custom-built. POWERTON is designed to support multiple persistence mechanisms, including WMI and auto-run registry key. POWERTON typically gets deployed as a... | ['T1547.001'] |
A batch file that is used to run Bitsadmin and Rundll to download and execute the Egregor payload. A Zip file contains a binary file that is an RClone client, renamed svchost, and RClone config files (webdav, ftp and dropbox) used later for exfiltration | ['T1059.003'] |
The screenshot above shows an abbreviated view of the in-memory PowerShell backdoor. The PowerShell backdoor has the following capabilities | ['T1049', 'T1518', 'T1027'] |
The archive contains two files; the first is an executable file, while the second is a decoy PDF document. The bear’s lair . The Stage-1 downloader will download and execute a new downloader, written in C++, not so different from other Zebrocy downloaders. How the bear hunts . In this section we describe in more detail... | ['T1083'] |
The reason for this is that most of the file comprises meaningless overlay data, since the file is an automatically generated AutoIT executable with an AutoIT3 script embedded inside. Once started, it downloads additional malware from the C2 and also uploads some basic system information, stealing, among other things, ... | ['T1105'] |
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... | ['T1547.001'] |
This structure parses out executable scripts from data provided via a remote operator. In this case, the REGEX value indicates this implant will receive scripts compressed (tar files). The malware will then decompress them before executing the embedded script. Analysis indicates the WellMail implant is similar in desig... | ['T1105'] |
Narrow attacks targeted the Automotive industry among others, while the large malicious spam campaigns appear to be associated with threat actor TA505, an actor responsible for many large-scale attacks since at least 2014 | ['T1204.002'] |
We have discovered that malware dubbed WinDealer, spread by Chinese-speaking APT actor LuoYu, has an ability to perform intrusions through a man-on-the-side attack | ['T1204.001', 'T1566.002', 'T1566.001', 'T1566.002', 'T1120'] |
Finally, the malware changes the password of the local users. In the files analyzed, all the passwords chosen by the actor have the same pattern: Aa153 | ['T1531'] |
The configuration file for Torisma is encrypted using the algorithm VEST[1] in addition to the communication sent over the C2 channel. From our research this encryption method is not commonly used anywhere, in fact it was a proposed cipher that did not become a standard to be implemented in general technologies[2 | ['T1041', 'T1573.001'] |
In response to historical disclosures detailing TA416 PlugX malware infection and encoding methods, the group appears to have adopted a rapid rate of development for their PlugX payloads. The group uses different legitimate PE files to initiate sideloading, as well as a variety of PlugX DLL loaders including the PotPla... | ['T1027'] |
Usually, after infection the bot sends a ‘PING’ message, ‘SYSTEM INFO’ message and ‘ASK for COMMAND’ message, and the C2 replies with ‘ACK’ and ‘COMMAND’ messages. If additional modules were pushed by the C2, the bot sends a ‘STOLEN INFO’ message containing data stolen by the modules | ['T1041'] |
The malware can use 2 different public RSA keys: one exported using the crypto api in a public blob or using the embedded in base64 in the malware. The malware will only use the second one if it cannot create the crypto context or has some problem with the crypto api functions | ['T1106'] |
Pillowmint is usually installed through a malicious shim database which allows the malware to persist in the system | ['T1546.011'] |
1) An application is bundled with virtualization software, a Linux image and additional files used to achieve persistence. 2) User downloads the application and follows attached instructions on how to install it. 3) LoudMiner is installed first, the actual VST software after. 4) LoudMiner hides itself and becomes persi... | ['T1569.002', 'T1218.007'] |
Once on the network, the attackers engaged in network reconnaissance and retrieved a list of trusted domains and a list of domain controllers with the following commands | ['T1482'] |
When REvil was first discovered, it was delivered to targets via exploitation of Oracle WebLogic vulnerabilities. There are reports that the threat actors leveraged a strategic web compromise (SWC) to deliver REvil by compromising the Italian WinRAR . it website and replacing the WinRAR installation executable with an ... | ['T1189'] |
ZxShell.dll is injected in a shared SVCHOST process. The Svchost group registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SvcHost is opened and the netsvc group value data is queried to generate a name for the service | ['T1055.001'] |
MSTIC has observed NICKEL actors using exploits against unpatched systems to compromise remote access services and appliances. Upon successful intrusion, they have used credential dumpers or stealers to obtain legitimate credentials, which they used to gain access to victim accounts. MSTIC has also observed NICKEL perf... | ['T1614.001', 'T1082'] |
DriveSlayer is digitally signed using a valid certificate and also abuses a legitimate EaseUS Partition Master driver to gain raw disk access and manipulate the disk to make the system inoperable | ['T1553.002'] |
Like any other typical PoS malware, Pillowmint iterates a list of processes and process them two at a time. it uses the API OpenProcess() using the PROCESS_VM_READ and PROCESS_QUERY_INFORMATION flags to obtain a handle then reads the memory’s content via ReadProcessMemory() API two chunks at a time. Depending on the Pi... | ['T1106'] |
Along with the EDRPOU numbers, the backdoor collects proxy and email settings, including usernames and passwords, from the M.E.Doc application | ['T1087.003'] |
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. Such targeted attacks can result in the leak of restricted research, unauthorized access for espionage and even... | ['T1588.002'] |
Once the Bazar loader downloads its payload, the Bazar backdoor, it is decrypted using the same method as the aforementioned Team9 variant | ['T1104'] |
For the investigators at NCC Group and Fox-IT these pieces of evidence supported the hypothesis of the adversary achieving credentials access by brute force, and more specifically by credential stuffing or password spraying | ['T1589.001'] |
Once gaining the initial foothold into a container, Hildegard establishes either a tmate session or an IRC channel back to the C2. It is unclear how TeamTNT chooses and tasks between these two C2 channels, as both can serve the same purpose. At the time of writing, tmate sessions are the only way the attacker interacts... | ['T1219', 'T1219'] |
After loading its configuration data, GoldMax checks the current date-time value of the compromised system against the activation date from the configuration data | ['T1016', 'T1497.003', 'T1124'] |
Once the VBScript in XSL has been run, console commands launched by the JS code continue to be executed. Three files are copied into the folder OFFICE12 that was created in the user profile. Those files are | ['T1220'] |
POSHSPY makes the most of using built-in Windows features – so-called “living off the land” – to make an especially stealthy backdoor. POSHSPY's use of WMI to both store and persist the backdoor code makes it nearly invisible to anyone not familiar with the intricacies of WMI. Its use of a PowerShell payload means that... | ['T1059.001'] |
The attack typically begins with an attempt – most probably via a spearphishing email – to lure the intended victim into running the malicious dropper, which is attached to the email. In order to increase the likelihood that the unsuspecting victim will actually click on it, the malicious executable masquerades as a do... | ['T1566.001', 'T1204.002'] |
From the main function, the malware invokes a function named eiht_get_update. This function attempts to read a remote file (ret.txt) from andrewka6.pythonanywhere.com that contained the address of the remote command and control server. If that failed, the malware would default to using the hard-coded (albeit encrypted)... | ['T1620'] |
It executes the other modules and collects initial information about the machine, including information about the network, locale, and the keyboard language | ['T1082'] |
On February 12, 2018 at 16:45 (all times are in the organization’s local time), an email was sent to the organization advertising a job vacancy at an American global service provider. The email contained a malicious link to hxxp://mynetwork.ddns[DOT].net:880 | ['T1566.002'] |
Figure 3 outlines the architecture of Crutch version 3. It includes a backdoor that communicates with a hardcoded Dropbox account using the official HTTP API. In some variants, we noticed the presence of recovery C&C channels using either GitHub or a regular domain | ['T1071.001'] |
Loader Trojan The payload dropped to the system by the macro is an executable that is responsible for installing and executing a dynamic link library (DLL) to the system. The loader has several coding features that make it interesting. Upon execution, the loader will decrypt the embedded payload (DLL) using a custom al... | ['T1027'] |
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