General

  • Target

    8a8010863859888ac4f08fa9afbda54602dabbbbbcf114b8d51fef0b66be7f93N

  • Size

    4.9MB

  • Sample

    241004-a7qcrsvhnp

  • MD5

    87c0d521f3387245929438143a477b30

  • SHA1

    d427908e35f8a94c83750d923b32c91583091981

  • SHA256

    8a8010863859888ac4f08fa9afbda54602dabbbbbcf114b8d51fef0b66be7f93

  • SHA512

    f0f2d6916ad0082e4e30874e1df32bb9250e4f4d7557746eda09c8d38ac115122856cb19361f4d6085326b7826a029ad6e413dabfb81ef439913c711e0c2ac29

  • SSDEEP

    49152:jl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

rc4.plain

Targets

    • Target

      8a8010863859888ac4f08fa9afbda54602dabbbbbcf114b8d51fef0b66be7f93N

    • Size

      4.9MB

    • MD5

      87c0d521f3387245929438143a477b30

    • SHA1

      d427908e35f8a94c83750d923b32c91583091981

    • SHA256

      8a8010863859888ac4f08fa9afbda54602dabbbbbcf114b8d51fef0b66be7f93

    • SHA512

      f0f2d6916ad0082e4e30874e1df32bb9250e4f4d7557746eda09c8d38ac115122856cb19361f4d6085326b7826a029ad6e413dabfb81ef439913c711e0c2ac29

    • SSDEEP

      49152:jl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks