General

  • Target

    9fa0a5fbe7fda461fd81c1bab54c87d5c325c980f0cb9523f5b2b1f1c208be54N

  • Size

    4.9MB

  • Sample

    241021-kh5q9syelr

  • MD5

    6fffc1e333969842f53c8ccc15fc56e0

  • SHA1

    5b11ed152f48402f76af5291115599635a0f5323

  • SHA256

    9fa0a5fbe7fda461fd81c1bab54c87d5c325c980f0cb9523f5b2b1f1c208be54

  • SHA512

    f7108a3213d454094fcbbc21ccb84837d31c81cbb0776593e591685b8b34d5a676aec610603b94de849a867eed84b9d5881421669418f546acf99ceb9dbf6225

  • 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

      9fa0a5fbe7fda461fd81c1bab54c87d5c325c980f0cb9523f5b2b1f1c208be54N

    • Size

      4.9MB

    • MD5

      6fffc1e333969842f53c8ccc15fc56e0

    • SHA1

      5b11ed152f48402f76af5291115599635a0f5323

    • SHA256

      9fa0a5fbe7fda461fd81c1bab54c87d5c325c980f0cb9523f5b2b1f1c208be54

    • SHA512

      f7108a3213d454094fcbbc21ccb84837d31c81cbb0776593e591685b8b34d5a676aec610603b94de849a867eed84b9d5881421669418f546acf99ceb9dbf6225

    • 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