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General

  • Target

    https://github.com

  • Sample

    240625-mvrfhsvfje

Malware Config

Extracted

Family

xworm

C2

logo-active.gl.at.ply.gg:25835

0x9d2c646775BAa45D051289fE9b2c1AacD26A43A0:1

seems-poet.gl.at.ply.gg:30996

response-hamburg.gl.at.ply.gg:59171

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    msedge.exe

  • telegram

    https://api.telegram.org/bot6763574008:AAHEXR4ypdI308urgV3J-jyMocsw7X8318Q

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:28223

unknown-sunglasses.gl.at.ply.gg:28223

Mutex

rVUJpGK3xHCE778M

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

aes.plain

Extracted

Family

gurcu

C2

https://api.telegram.org/bot6763574008:AAHEXR4ypdI308urgV3J-jyMocsw7X8318Q/sendMessage?chat_id=tgratbot

Targets

    • Detect Umbral payload

    • Detect Xworm Payload

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Stops running service(s)

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks