General

  • Target

    7400236c0f5f5fec04649ae26fe2999174eb2dd73fe0e93f54adef12d8d70a1aN

  • Size

    4.9MB

  • Sample

    241011-dbd7ea1hle

  • MD5

    2b748156c46b12dda0fe68199c2853f0

  • SHA1

    11dc51c0fa65751c1a4747055700c6b54a91e845

  • SHA256

    7400236c0f5f5fec04649ae26fe2999174eb2dd73fe0e93f54adef12d8d70a1a

  • SHA512

    ab8a8c46da9e12024d0d4d5582fb2dc8af12e70db6f1a4c7e33ce34ed988efacac06e93a1ad05d12175eb2d450b71b4c2fa5363fa26e3099c9017a852b902fc5

  • SSDEEP

    49152:rl5MTGChZpxtlBBgxchXb/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

      7400236c0f5f5fec04649ae26fe2999174eb2dd73fe0e93f54adef12d8d70a1aN

    • Size

      4.9MB

    • MD5

      2b748156c46b12dda0fe68199c2853f0

    • SHA1

      11dc51c0fa65751c1a4747055700c6b54a91e845

    • SHA256

      7400236c0f5f5fec04649ae26fe2999174eb2dd73fe0e93f54adef12d8d70a1a

    • SHA512

      ab8a8c46da9e12024d0d4d5582fb2dc8af12e70db6f1a4c7e33ce34ed988efacac06e93a1ad05d12175eb2d450b71b4c2fa5363fa26e3099c9017a852b902fc5

    • SSDEEP

      49152:rl5MTGChZpxtlBBgxchXb/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