General

  • Target

    baad38b864eef46fd5414ef4aa483b644746242a09f95ab81e0fa90704aae353N

  • Size

    4.9MB

  • Sample

    241001-vmcldsvbld

  • MD5

    916dfec6e74a12ca331424d9a83f6270

  • SHA1

    e0990916cd17d53000a9d4feec420c7965bcc23f

  • SHA256

    baad38b864eef46fd5414ef4aa483b644746242a09f95ab81e0fa90704aae353

  • SHA512

    230dd85c3a6e7ff009a4ce16d692f32269c38a04681faf09badcad5cb9c7f7ee768960fd69f40e4203df31c0a6d06e1340499e0abb8bba45609de34b33f2a5d4

  • 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

      baad38b864eef46fd5414ef4aa483b644746242a09f95ab81e0fa90704aae353N

    • Size

      4.9MB

    • MD5

      916dfec6e74a12ca331424d9a83f6270

    • SHA1

      e0990916cd17d53000a9d4feec420c7965bcc23f

    • SHA256

      baad38b864eef46fd5414ef4aa483b644746242a09f95ab81e0fa90704aae353

    • SHA512

      230dd85c3a6e7ff009a4ce16d692f32269c38a04681faf09badcad5cb9c7f7ee768960fd69f40e4203df31c0a6d06e1340499e0abb8bba45609de34b33f2a5d4

    • 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