General

  • Target

    e60e7930fbd9755486476e68fb25c9e90d050d53788b97aecb9b9492e47b57c2

  • Size

    4.9MB

  • Sample

    241029-g3gndsvkdv

  • MD5

    7f124e1fb3980bc3871284f7baed824c

  • SHA1

    7f0ab3d0a1ae21c5dd3a737055ddd5c67093d252

  • SHA256

    e60e7930fbd9755486476e68fb25c9e90d050d53788b97aecb9b9492e47b57c2

  • SHA512

    2d7f6197e317e91b5a7c07c5cbe0ae1964a955f88a0d4d5cec76111474c9aaaddd692b4555d1beec9061c00d1c13ccf92e1f4d3db26a06672997028e155c8f49

  • 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

      e60e7930fbd9755486476e68fb25c9e90d050d53788b97aecb9b9492e47b57c2

    • Size

      4.9MB

    • MD5

      7f124e1fb3980bc3871284f7baed824c

    • SHA1

      7f0ab3d0a1ae21c5dd3a737055ddd5c67093d252

    • SHA256

      e60e7930fbd9755486476e68fb25c9e90d050d53788b97aecb9b9492e47b57c2

    • SHA512

      2d7f6197e317e91b5a7c07c5cbe0ae1964a955f88a0d4d5cec76111474c9aaaddd692b4555d1beec9061c00d1c13ccf92e1f4d3db26a06672997028e155c8f49

    • SSDEEP

      49152:Dl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • Colibri family

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • 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