General

  • Target

    5bb5b675e57095d6b0d8db6bb72107bfaa54c808d4e217511caf44540b08d4f2N

  • Size

    4.9MB

  • Sample

    241007-mk6sfsthnh

  • MD5

    fbad13694fbd76b4a28785c6fa12af90

  • SHA1

    35aca1ddefc9672625d9e94fd886810f30eea843

  • SHA256

    5bb5b675e57095d6b0d8db6bb72107bfaa54c808d4e217511caf44540b08d4f2

  • SHA512

    0e4ec2070b6fde55ea405611c7d8bc73520670608a6dc0e2f605c9a70c96bfa44135f988c7c1c29d20f0a1edd0390e056d9e6d6401d4a8aefee0fa96e1cb447b

  • 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

      5bb5b675e57095d6b0d8db6bb72107bfaa54c808d4e217511caf44540b08d4f2N

    • Size

      4.9MB

    • MD5

      fbad13694fbd76b4a28785c6fa12af90

    • SHA1

      35aca1ddefc9672625d9e94fd886810f30eea843

    • SHA256

      5bb5b675e57095d6b0d8db6bb72107bfaa54c808d4e217511caf44540b08d4f2

    • SHA512

      0e4ec2070b6fde55ea405611c7d8bc73520670608a6dc0e2f605c9a70c96bfa44135f988c7c1c29d20f0a1edd0390e056d9e6d6401d4a8aefee0fa96e1cb447b

    • 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