General

  • Target

    c9699c0c052533b14fc3e6fb7fd5f5d7d816de3be73b28e735abb577dc806afdN

  • Size

    4.9MB

  • Sample

    240927-3g67taxflc

  • MD5

    a6c5b160e71e3b8abcb03a9f36e34210

  • SHA1

    6d0cf47836c615a7904dafb524aefe90ff905292

  • SHA256

    c9699c0c052533b14fc3e6fb7fd5f5d7d816de3be73b28e735abb577dc806afd

  • SHA512

    db124269161a7fa1cb49c10ce3cfb37af71eff5d5596075f0edc55379622fe33fd048b93c5a42c7c56ded9600594022a8c991c75cca513431f0f9c30514c2b68

  • 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

      c9699c0c052533b14fc3e6fb7fd5f5d7d816de3be73b28e735abb577dc806afdN

    • Size

      4.9MB

    • MD5

      a6c5b160e71e3b8abcb03a9f36e34210

    • SHA1

      6d0cf47836c615a7904dafb524aefe90ff905292

    • SHA256

      c9699c0c052533b14fc3e6fb7fd5f5d7d816de3be73b28e735abb577dc806afd

    • SHA512

      db124269161a7fa1cb49c10ce3cfb37af71eff5d5596075f0edc55379622fe33fd048b93c5a42c7c56ded9600594022a8c991c75cca513431f0f9c30514c2b68

    • SSDEEP

      49152:Dl5MTGChZpxtlBBgxchXb/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