General

  • Target

    f0e26d840e7cb41461066f723eb501e4444764f66d3712ea877c456dbcedc4f7

  • Size

    4.9MB

  • Sample

    241114-hs4kvayqfr

  • MD5

    06f186fc55f38b20a7273da22fe0007a

  • SHA1

    3eae6dd2aec4dcd82864b9fbe446e85ea603784b

  • SHA256

    f0e26d840e7cb41461066f723eb501e4444764f66d3712ea877c456dbcedc4f7

  • SHA512

    05ea938925775b835e347265e255372c0c2deee1d68b356836c85b93f5751fced8ca8d758ebdc745c0274c53c9c350e63cc2a8624b99aa345438b2963b2a1f37

  • SSDEEP

    49152:Dl5MTGChZpxtlBBgxchXb/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

      f0e26d840e7cb41461066f723eb501e4444764f66d3712ea877c456dbcedc4f7

    • Size

      4.9MB

    • MD5

      06f186fc55f38b20a7273da22fe0007a

    • SHA1

      3eae6dd2aec4dcd82864b9fbe446e85ea603784b

    • SHA256

      f0e26d840e7cb41461066f723eb501e4444764f66d3712ea877c456dbcedc4f7

    • SHA512

      05ea938925775b835e347265e255372c0c2deee1d68b356836c85b93f5751fced8ca8d758ebdc745c0274c53c9c350e63cc2a8624b99aa345438b2963b2a1f37

    • SSDEEP

      49152:Dl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • Colibri family

    • DcRat

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

    • Dcrat family

    • 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