General

  • Target

    9cdd1eac65b15a8e517f52b07c095ea7de43469b77943c4f57f20dfdaf0e05b9N

  • Size

    4.9MB

  • Sample

    240930-eg3bvs1emf

  • MD5

    1104e32eb6157e6798d194f9a6d29e90

  • SHA1

    178fca5fa8a5b0977c812bd58bd8912393f33591

  • SHA256

    9cdd1eac65b15a8e517f52b07c095ea7de43469b77943c4f57f20dfdaf0e05b9

  • SHA512

    184de1c9150cea1ead9be483b46d80a6053d81760884ed935b7a9ef657c3286034a78b55ade810f5da9817e78516140356d401cbc68ba442ee13fabd44d9a35f

  • 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

      9cdd1eac65b15a8e517f52b07c095ea7de43469b77943c4f57f20dfdaf0e05b9N

    • Size

      4.9MB

    • MD5

      1104e32eb6157e6798d194f9a6d29e90

    • SHA1

      178fca5fa8a5b0977c812bd58bd8912393f33591

    • SHA256

      9cdd1eac65b15a8e517f52b07c095ea7de43469b77943c4f57f20dfdaf0e05b9

    • SHA512

      184de1c9150cea1ead9be483b46d80a6053d81760884ed935b7a9ef657c3286034a78b55ade810f5da9817e78516140356d401cbc68ba442ee13fabd44d9a35f

    • 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