text1 stringlengths 7 2.5k | labels stringlengths 9 100 |
|---|---|
Siloscape mimics CExecSvc.exe privileges by impersonating its main thread and then calls NtSetInformationSymbolicLink on a newly created symbolic link to break out of the container. More specifically, it links its local containerized X drive to the host’s C drive | ['T1611'] |
To check the host language, it queries the registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Language\ and the value InstallLanguage. If the machine has the value 0419 (Russian), 0422 (Ukrainian) or 0423 (Belarusian), it call ExitProcess to stop executing | ['T1614.001'] |
A custom executable that only contains the Metasploit shellcode. This is used to maintain access to a Meterpreter session. 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 execu... | ['T1059.001'] |
After initialization, the code monitors browser activities, looking for online banking sessions. Once these are found, the malware enables the attacker to display an overlay window in front of the victim’s browser to manipulate the user’s session in the background. In this way, the fraudulent transaction is performed f... | ['T1185', 'T1185'] |
All the text files are now packed into the archive temp.zip (%temp%\temp.zip) - zip is Base64 encoded (with a custom key, same as that used in the malicious document) and then copied to post.txt - txt is uploaded to the control server | ['T1560', 'T1074.001'] |
Attackers Abusing Legitimate Cloud Monitoring Tools to Conduct Cyber Attacks . Get Free Account . Join Now . Introduction . TeamTNT is a cybercrime group that targets cloud environments including Docker and Kubernetes instances. TeamTNT has also been spotted using a malicious Docker image which can be found on Docker H... | ['T1133'] |
As of this publication, BRONZE BUTLER demonstrates a preference for concurrently using Datper and xxmm in its operations. CTU researchers identified an xxmm builder for xxmm (see Figure 2), which suggests that the threat actors customize the xxmm malware settings based on the target. T-SMB Scan — This SMB scanning tool... | ['T1036.005'] |
Upon initial execution, the Windows Registry is checked to determine if DarkWatchman has already been installed. The malware stores its configuration in ‘\\HKCU\Software\Microsoft\Windows\DWM\‘, using registry keys that consist of a uid generated from the serial number of the C: drive and appended with a single digit o... | ['T1012'] |
This variant uses an 8-byte XOR key to obfuscate API names and other strings within the payload (Figure 5). Figure 5: 8-Byte XOR Key for obfuscation | ['T1027'] |
TrailBlazer is a sophisticated malware family that provides modular functionality and a very low prevalence. TrailBlazer persists on a compromised host using WMI event subscriptions4 — a technique also used by SeaDuke — although this persistence mechanism is not exclusive to COZY BEAR.5 | ['T1001.001'] |
A key trait of NOBELIUM’s ongoing activity over the last year has been the abuse of indirect paths and trust relationships to target and gain access to victims of interest for intelligence gain. In the most recent campaign, this has manifested in a compromise-one-to-compromise-many approach—exploiting the service provi... | ['T1199'] |
To avoid being run in sandboxes and emulators, all MegaCortex versions implement file encryption threading based on querying for the number of CPUs in the system. All MegaCortex versions can detect if the binary is running with administrator privileges | ['T1497.001'] |
GALLIUM primarily relies on compromised domain credentials to move through the target network, and as outlined above, uses several credential harvesting tools. Once they have acquired credentials, the activity group uses PsExec extensively to move laterally between hosts in the target network | ['T1570'] |
Before being hashed, the character “0” or “1” is appended to the return value indicating root privileges. This clientID is stored in /Library/Storage/File System/HFS/25cf5d02-e50b-4288-870a-528d56c3cf6e/pivtoken.appex if the code runs as root, or in ~/Library/SmartCardsServices/Technology/PlugIns/drivers/snippets.ecgML... | ['T1070.006'] |
After dropping these files to its working directory, the malware attempts to change the attributes of all the files to “hidden” and grant full access to all files in the current directory and any directories below. It does this by executing “attrib +h .”, followed by “icacls . /grant Everyone:F /T /C /Q | ['T1222.001'] |
The actors used valid credentials obtained using MimiKatz variants to escalate privileges. We’ve observed Mimikatz being executed both from the file system of victim hosts and via PowerShell cmdlets executed via Cobalt Strike BEACON. Actors have gained access to credentials via exported copies of the ntds.dit Active Di... | ['T1003.003'] |
We analyzed a new RATANKBA variant that uses a PowerShell script instead of its more traditional PE executable form | ['T1059.001'] |
The story of a Linux miner bundled with pirated copies of VST (Virtual Studio Technology) software for Windows and macOS | ['T1189'] |
FIVEHANDS can receive a CLI argument for a path, this limits the ransomware's file encryption activities to the specified directory. DEATHRANSOM and HELLOKITTY do not accept CLI arguments | ['T1059'] |
TEARDROP is a memory only dropper that runs as a service, spawns a thread and reads from the file “gracious_truth.jpg”, which likely has a fake JPG header. Next it checks that HKU\SOFTWARE\Microsoft\CTF exists, decodes an embedded payload using a custom rolling XOR algorithm and manually loads into memory an embedded p... | ['T1027', 'T1140'] |
However the application is not a service of Yahoo or a legitimate product of McAfee, but a rogue application used by Pawn Storm. Clicking on the “Agree” button would give Pawn Storm an OAuth token and access to the targets’ mailbox. The group then gains access to the mailbox until the token gets revoked by the service ... | ['T1550.001'] |
If this function is successfully loaded, it will ultimately spawn a new instance of itself with the Rundll32Call export via a call to rundll32.exe. The Rundll32Call exported function begins by creating a named event named ‘RunOnce’. This event ensures that only a single instance of DDKong is executed at a given time. I... | ['T1218.011'] |
Command_Create&Inject: This command creates a new process (using a supplied filename as the process name) and then injects malicious code into it | ['T1055'] |
In order to encrypt network shares, BitPaymer will attempt to enumerate the sessions for each user logged onto the infected host and create a new process, using the token of each user. For each host, BitPaymer spawns another net.exe process with command net view <host> using the newly discovered host as a paramet... | ['T1087.001'] |
The threat actors used scripts to create local administrator accounts disguised as legitimate backup accounts. The initial script “symantec_help.jsp” contained a one-line reference to a malicious script designed to create the local administrator account and manipulate the firewall for remote access | ['T1036'] |
This file is a USB file stealer which can be also guessed by its internal name "USBgrabber.dll". However, the implementation is sloppy which makes it a file stealer for any newly connected logical volume on a system. This is because the malware monitors the computer for messages WM_COMMAND and WM_DEVICECHANGE, but not ... | ['T1025'] |
The job of the smaller of the two JavaScripts is to establish a system autostart mechanism. It accomplishes this by deobfuscating another script, link.js, into %TMP%. Link.js in turn creates a shortcut file "Java(TM) Platform SE Auto Updater.lnk" in the "Startup" special folder pointing to the main backdoor JavaScript | ['T1547.001', 'T1547.009'] |
After the deletion process, the malware gets the function “Wow64RevertWow64FsRedirection” using the function “GetProcAddress” and calls it in a dynamic way to leave the system in the same state as before | ['T1070'] |
The "Office Test" persistence mechanism allows threat actors to execute a Trojan each time a user runs any of the Office applications. This persistence mechanism loads a malicious DLL by leveraging a registry key that appears to be used during the development and testing of Microsoft Office applications. The use of thi... | ['T1137.002'] |
The malware performs COM hijacking by setting the path to itself to the HKCU\Software\Classes\Folder\shell\open\command key with a DelegateExecute parameter | ['T1546.015'] |
The plugin begins by collecting the username of the running process, and determining if it is running under the SYSTEM account. If running as SYSTEM, the plugin will associate the active desktop with the plugin’s thread | ['T1033'] |
Figure 5: Registry Activity The script then determines the version of Powershell that is being used on the infected system. If the switch associated with the execution of Stage 3 was passed to the 'pre_logic' function at the beginning of this stage, the Stage 3 payload will then be executed immediately | ['T1564.004'] |
When executed, Kwampirs decrypts and extracts a copy of its main DLL payload from its resource section. Before writing the payload to disk, it inserts a randomly generated string into the middle of the decrypted payload in an attempt to evade hash-based detections | ['T1140', 'T1027.001'] |
This process executes a command to maliciously use the legitimate wmic.exe to initialize an XSL Script Processing (MITRE Technique T1220) attack. The attack executes embedded JScript or VBScript in an XSL stylesheet located on a remote domain (qnccmvbrh.wilstonbrwsaq[.]pw | ['T1220'] |
An additional batch script named “dirsb.bat” was used to gather folder and file names from hosts on the network | ['T1083'] |
The malware can be instructed to search for recently-used documents or other interesting files. It can monitor specific directories and removable devices, report any changes and exfiltrate files of the attackers’ choice | ['T1083'] |
The WhiteBear binary loader maintains several features including two injection methods for its (oddly named) “KernelInjector” subsystem, also named by its developer – Standart – WindowInject (includes an unusual technique for remotely placing code into memory for subsequent thread execution | ['T1055.003'] |
The malware then focuses on corrupting the first 512 bytes, the Master Boot Record (MBR) for every Physical Drive. While that should be enough for the device not to boot again, HermeticWiper proceeds to enumerate the partitions for all possible drives | ['T1561.002'] |
The lnk file (WindowsUpdateConf.lnk) executes “C:\Windows\system32\wuauclt.exe” /UpdateDeploymentProvider C:\Wíndows\system32\wuaueng.dll /RunHandlerComServer. This is an interesting technique used by Lazarus to run its malicious DLL using the Windows Update Client to bypass security detection mechanisms | ['T1218'] |
While the most recent samples observed still use batch scripts and SFX files, the Gamaredon Group has moved away from applications like wget, Remote Manipulator Tool, VNC and ChkFlsh.exe. Instead of using wget the attackers are distributing custom developed downloaders, and instead of Remote Manipulator or VNC the malw... | ['T1059.003'] |
One of the documents is called “همبستگی عاشقانه با عاشقان آزادی2.doc” (translates from Persian as “Romantic Solidarity With Lovers of Freedom2.doc”) and contains malicious macros that are accompanied by an odd decoy message attempting to convince the victim to enable its content | ['T1204.002'] |
Once the attacker gained access to the network with compromised credentials, they moved laterally using multiple different credentials. The credentials used for lateral movement were always different from those used for remote access | ['T1078'] |
The OilRig group maintains their persistent attacks against government entities in the Middle East region using previously identified tools and tactics. In this instance a spear phishing email was used containing a lure designed to socially engineer and entice the victim to executing a malicious attachment. The attachm... | ['T1497.001'] |
This function converts the given domain to “backdoor”, which can be used to login to the tenant as any user. See Open-AADIntOffice365Portal to use the backdoor | ['T1484'] |
We believe that the injected script came from the Andariel group since the code has similar obfuscation and structure to the sample we previously found from them. The script was used to collect information from visitors’ browser: browser type, system language, Flash Player version, Silverlight version, and multiple Act... | ['T1592.002'] |
As you can see from the VBScript file, the commands in the script are invoked using the wscript shell. It does two things: it creates a “RunOnce” key in the registry so that the VBScript is executed each time the user logs on the machine (indicating persistence) and second, the VBScript runs the executable file “firefo... | ['T1547.001'] |
The task is used to start an IronPython script with the 64-bit version of the interpreter. However, the key didn’t decrypt on any of the embedded files in the scripts we found. The task’s description is PythonUpdateSrvc and it runs either on Windows startup when a user logs in or when one of two system events get creat... | ['T1053.005'] |
Modify the shortcut that launches Telegram by replacing its path to the one corresponding to ‘exe’, as outlined below | ['T1518', 'T1547.009'] |
We also identified a Tomiris variant (internally named “SBZ”, MD5 51AA89452A9E57F646AB64BE6217788E) which acts as a filestealer, and uploads any recent file matching a hardcoded set of extensions (.doc, .docx, .pdf, .rar, etc. to the C2 | ['T1041'] |
The loader performs a last check to ensure that the operating systems keyboard and language settings are not set to Russian and creates a mutex with a hardcoded name ‘ld_201127’. The latter is to avoid double execution of its own instance | ['T1614.001'] |
The phishing messages were found to contain a Microsoft Word document attachment that uses VBA macros to install LookBack malware. When the attachment is executed, the malicious VBA macro within the Microsoft Word attachment drops three Privacy Enhanced Mail (PEM) files to the host: tempgup.txt, tempgup2.txt, and temps... | ['T1059.005'] |
The payload file also checks for the Logmein event log in an attempt to encrypt files in remote machines or servers connected to the victim’s machine. The path to the log file is hard-coded in the payload file, as shown here | ['T1219'] |
Here, we show an example of a PDF campaign as seen from the point of view of the affected user. This malicious PDF only contains a URL to entice the user to view the file. If the user chooses to click on the URL link and to read the actual content of the file, the browser will open a legitimate Google location which wi... | ['T1059.005'] |
It then allocates a buffer with PAGE_EXECUTE_READWRITE protection to store the decrypted code. After the buffers are allocated, the packer checks if a string argument, which will be used as a decryption key, was passed to the AddByGod function. Next, the packer uses the AES256 algorithm with a SHA1 derived key of the p... | ['T1140'] |
It also turns off the Windows Security Center service to prevent alerting the user about the disabled firewall | ['T1562.001'] |
Further into the infection process, the malware chooses a service name randomly from netsvc in order to use it for the payload creation path. The malware then creates a file named bcdbootinfo.tlp in the system folder containing the infection time and the random service name that is chosen | ['T1036.005'] |
AQUATIC PANDA continued their reconnaissance from the host, using native OS binaries to understand current privilege levels as well as system and domain details | ['T1082'] |
While the logo and commands are identical to the original hacktool, the name was changed to OrangeTeghal. To evade security software while deploying this tool on compromised systems, the attackers use a technique revealed at Black Hat EU ‘17 in the presentation Lost in Transaction: Process Doppelgänging. Process Doppel... | ['T1055.013'] |
Talos has identified two different infection vectors associated with this particular campaign. The second vector is a trojanized Word document that prompts the victim to enable macros and run a Visual Basic script. In the first scenario, Talos discovered a document named "MinutesofMeeting-2May19.docx", that appeared to... | ['T1059.003'] |
ScreenCapture: It takes screenshots of the infected machine - Download Secondary Payloads: It downloads additional plugins and other malware - Enterprise-aware: It targets administrators and enterprises networks - Infiltrates the Exchange Server: It collects and steal sensitive information from the Microsoft Exchange m... | ['T1114.002'] |
Other security researchers have tracked these malware families under the names BazarLoader and BazarBackdoor or Team9. This document contains an in-line link to a URL hosting a malware payload. When clicked, these links download malware binaries with file names masquerading as document files. In recent campaigns, the m... | ['T1036.004'] |
X-Force IRIS found that the SDBbot RAT installers are x64-packed and decrypt parts of SDBbot’s code and strings upon execution. In addition, they read a binary blob located within the registry HKLM\\MACHINE\\SOFTWARE\\Microsoft\\[3 characters]\[1 character]. Depending on user privileges, a binary blog is located in the... | ['T1547.001'] |
In some instances, we have also seen the RemcosRAT malware family delivered as the final payload. Additionally, the process attempts to lower the overall security of the system by disabling security features in Microsoft Office and Windows Defender | ['T1562.001'] |
Following the reconnaissance phase, the threat actor attempted to dump credentials stored on the compromised machines. The most common credential stealing tool used by the threat actor was a modified mimikatz that dumps NTLM hashes. The dumped hashes were used to authenticate to other machines via pass the hash | ['T1550.002'] |
The attack targeted at least one organization in Saudi Arabia, which aligns with the targeting of the initial Shamoon attacks. It appears the purpose of the new Disttrack samples were solely focused on destruction, as the samples were configured with a non-operational C2 server to report to and were set to begin wiping... | ['T1036.004'] |
Finally, the payloads were almost never repeated. The threat actor made sure that each payload had a unique hash, and some payloads were packed using different types of packers, both known and custom | ['T1027.005', 'T1027.002'] |
txt,log} and is also a "cryptojacker," which is a tool that uses a victim’s computer to mine cryptocurrency. Nirsoft SniffPass is capable of obtaining passwords sent over non-secure protocols | ['T1040'] |
websites visitors have a higher likelihood to be targets of interest) - Add one or more webshell backdoors to victim websites to maintain persistence - Webshell used to add JavaScript developed by OceanLotus into the website - The malicious JavaScript makes calls over HTTP or HTTPS to attacker controlled domains to typ... | ['T1071.001'] |
Following a series of denial-of-service attacks and website defacements, the new destructive malware corrupts the master boot record (MBR), partition and file system of all available physical drives on Windows machines | ['T1561.002'] |
On October 31, TA505 sent two campaigns, both using .lnk files embedded in Microsoft Word documents. As shown in Figure 4, recipients must open the attached Word document, enable editing, and then execute the .lnk file by double clicking an image in the document. They must further confirm that they want to open the .ln... | ['T1204.002'] |
UNC2465 used phishing emails and legitimate services to deliver the SMOKEDHAM backdoor. SMOKEDHAM is a .NET backdoor that supports keylogging, taking screenshots, and executing arbitrary .NET commands. During one incident, the threat actor appeared to establish a line of communication with the victim before sending a m... | ['T1102'] |
The execution of the Powershell that is passed to IEX by the Stage 1 Word document is where we begin to observe several interesting activities occurring on an infected system. One is used to determine whether or not to achieve persistence for the next stage of the infection process on the target system. If persistence ... | ['T1547.001'] |
While operating in the victim’s internal network, the threat actor accessed sensitive information specific to the products and services that the victim organization provided. This information included items such as product/service architecture and design documents, vulnerabilities and step-by-step instructions to perfo... | ['T1213'] |
All observed attacks start with an email message, containing either a malicious attachment or a URL which leads to the first stage of the attack. The text of the emails is likely taken from legitimate email, such as mailing lists that targeted organisations may be subscribed to. Below are three examples, with the first... | ['T1204.002'] |
The batch files involved in the attack modify the system service COMSysApp to load the malicious ipnet.dll. The contents of the batch files vary depending on the OS (x64 vs x86 | ['T1543.003'] |
While the image is displayed, the code drops an unusual mspaint.lnk shortcut to disk and launches it. The shortcut maintains a multiline target shell script. The 64kb lnk file is downloader code | ['T1547.009', 'T1059.003'] |
This spyware registers itself as a system service to ensure its automatic execution at every system startup by adding the following registry entries | ['T1543.003'] |
As has been previously reported, there are two variants of the trojan TinkaOTP. The version that has received the most attention contains the malware payload in the application bundle’s Resources folder. The file is a Mach-O binary disguised as a .nib file, at ../Resources/Base.lproj/Submenu.nib. This file is copied di... | ['T1564.001'] |
At the beginning of 2017, Silent Librarian began to regularly obtain free Let’s Encrypt SSL certificates for their phishing pages. This technique, which we have previous discussed at length in blog posts from November and December, is used to create more realistic-looking phishing pages | ['T1588.004'] |
The group appears to maintain a stockpile of stolen certificates and deploys their downloaders and the backdoors signed with them. Some of the more recent revoked certificates include ones that belong to Xuchang Hongguang Technology Co | ['T1553.002'] |
Lucifer also checks for the presence of following device drivers, DLLs, and virtual devices. If any of these objects are detected, the malware enters an infinite loop, stopping its execution from going further | ['T1497.001'] |
If so, it stops the execution and deletes the folder containing the malicious script from this machine. Download the malicious files onto the machine: the same batch file downloads a cab archive named env.cab from a remote address in the internal network: \\railways.ir\sysvol\railways.ir\scripts\env.cab. The use of spe... | ['T1562.001'] |
The HTTP mode is the same communication method used in variants of the malware from 2018. Although it uses the non-encrypted HTTP protocol to communicate with the C2 it manually encrypts the contents of the requests to hide data from packet inspection. The malware creates an AES session key and initial value (as detail... | ['T1573.001'] |
BBSRAT accepts many possible commands that the C2 server can provide. These commands are sent as a response to the GET beacons that are continually requested via either HTTP or HTTPS. The following commands and sub-commands have been identified | ['T1071.001'] |
This watchdog process also ensures that the Cardinal RAT process is always running, as well as ensures that the executable is located in the correct path. Should either of these conditions not be met, the watchdog process will spawn a new instance of Cardinal RAT, or write Cardinal RAT to the correct location, respecti... | ['T1057'] |
The REvil (also known as Sodinokibi) ransomware was first identified on April 17, 2019. It is used by the financially motivated GOLD SOUTHFIELD threat group, which distributes ransomware via exploit kits, scan-and-exploit techniques, RDP servers, and backdoored software installers. Secureworks® Counter Threat Unit™ (CT... | ['T1195.002'] |
In one intrusion, the first second-stage custom loader (TEARDROP) was introduced to the environment by BusinessLayerHost.exe at around 10:00 AM UTC. 7z.dll), Far Manager (e.g. The Variant 2 custom loaders were mostly compiled from open-source source code of legitimate applications, such as 7-Zip and Far Manager (i.e. t... | ['T1036'] |
KernelCallbackTable is initialized to an array of callback functions when user32.dll is loaded into memory, which are used whenever a graphical call (GDI) is made by the process. To hijack the control flow, malware replaces the USER32. _fnDWORD callback in the table with the malicious WMIsAvailableOffline function. Onc... | ['T1070'] |
In this case, repotaj.dll, which is ServHelper, will be extracted to %TEMP% and execute with the “feast” parameter as its export function. Once ServHelper is executed, it runs a PowerShell script to get information from the infected machine | ['T1059.001'] |
The malware tries to delete the shadow copies two times, once before crypting the files in the infected system and secondly after crypting them | ['T1490'] |
Apart from being a flexible and easy-to-use scripting language, BLADABINDI’s use of AutoIt is notable. It uses AutoIt (the FileInstall command) to compile the payload and the main script into a single executable, which can make the payload — the backdoor — difficult to detect | ['T1027.004'] |
DEATHRANSOM creates an RSA-2048 public and private key pair. The shared secret is SHA256 hashed and used as the key to Salsa20 encrypt the RSA public and private keys. The RSA public key is used to encrypt the individual symmetric keys that are used to encrypt each file. A Base64 encoded version of the encrypted RSA ke... | ['T1486'] |
The final stage, however, is a dotnet application that takes several commands such as directory listing, screenshot, compress, upload, etc. It then creates random long string folder names in temp directories to host the collected files per category before compressing, encrypting and uploading to the C2 server | ['T1074.001'] |
In an uninhibited Emotet infection, it’s likely the malware would have then attempted to move laterally to other machines in the environment. Malwarebytes has some good analyses of Emotet if you’re looking for further reading | ['T1210'] |
Another interesting artefact is that the script modifies the modification, access and creation (MAC) times of the local log file to match the times of a legitimate file – desktop.ini in that example, as shown in Figure 13 | ['T1070.006'] |
infpub.dat appears to be capable of brute-forcing NTLM login credentials to Windows machines that have pseudo-random IP addresses | ['T1110.003'] |
The code of this module is loaded directly into the exploited application and has several methods of payload execution. One of method uses a very interesting technique of payload execution which is designed mostly to bypass modern anti-malware products. This uses an interesting bug in the Windows DDE component. It is n... | ['T1189'] |
Although tracking threats like Winnti involves old-fashioned investigative work, Microsoft Threat Intelligence analysts take advantage of machine learning to work at scale. When attackers used Winnti to maintain access to web servers, they hid the implant in plain sight by masquerading it as a trusted, legitimate file | ['T1036.005'] |
The attackers are using a tool with name plainpwd in order to dump Windows credentials from memory. This tool is a slightly modified version of the open-source project mimikatz | ['T1003.001'] |
So attackers specify an external C&C server in the command line and the tool connects to this server using HTTP. This remote server is used as a proxy by attackers: the connection that goes to this server is redirected to the internal network by the tool and any response that the tool gets from a computer in the in... | ['T1090'] |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.