General

  • Target

    93a3114003ed7698411f3b78fab505c53012a6e8fdc669182756d03609cdd587

  • Size

    4.9MB

  • Sample

    241019-31mmhswhrg

  • MD5

    8d6dfdefd799c9332221c796a6357d7d

  • SHA1

    b4db624796583e409acabb081cbebc0a2b50c6a6

  • SHA256

    93a3114003ed7698411f3b78fab505c53012a6e8fdc669182756d03609cdd587

  • SHA512

    3118602bfe9b42a456319b0e8ed0df83974422bdb4edb59e37c5ea67a38b5411242ab114269aff7e325d880daedf93e55cab51cc74dfe63f66f2a661f5c01e58

  • SSDEEP

    49152:bl5MTGChZpxtlBBgxchXb/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

      93a3114003ed7698411f3b78fab505c53012a6e8fdc669182756d03609cdd587

    • Size

      4.9MB

    • MD5

      8d6dfdefd799c9332221c796a6357d7d

    • SHA1

      b4db624796583e409acabb081cbebc0a2b50c6a6

    • SHA256

      93a3114003ed7698411f3b78fab505c53012a6e8fdc669182756d03609cdd587

    • SHA512

      3118602bfe9b42a456319b0e8ed0df83974422bdb4edb59e37c5ea67a38b5411242ab114269aff7e325d880daedf93e55cab51cc74dfe63f66f2a661f5c01e58

    • SSDEEP

      49152:bl5MTGChZpxtlBBgxchXb/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