General

  • Target

    930040236d537be63b44b58c59f263d25d9af869abedff8e80d87157b99a6246.exe

  • Size

    4.9MB

  • Sample

    241127-kwn1nswqht

  • MD5

    5103a1bb4e59cbcc9d05cc7905681c9f

  • SHA1

    2ef27ea1ad70d19c214586cf8f44a03853c6fdf1

  • SHA256

    930040236d537be63b44b58c59f263d25d9af869abedff8e80d87157b99a6246

  • SHA512

    fc6aef981ab43609850d0b2e79fa4d22646c439f12a267b177b00a67afc1879000f195f1677b24f60250bc8839c4825294b094a902fece31942e8b8ef0ecf33a

  • SSDEEP

    49152:rl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8s:U

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

rc4.plain
1
hf9qkeO66MP7WJXkg9rp

Targets

    • Target

      930040236d537be63b44b58c59f263d25d9af869abedff8e80d87157b99a6246.exe

    • Size

      4.9MB

    • MD5

      5103a1bb4e59cbcc9d05cc7905681c9f

    • SHA1

      2ef27ea1ad70d19c214586cf8f44a03853c6fdf1

    • SHA256

      930040236d537be63b44b58c59f263d25d9af869abedff8e80d87157b99a6246

    • SHA512

      fc6aef981ab43609850d0b2e79fa4d22646c439f12a267b177b00a67afc1879000f195f1677b24f60250bc8839c4825294b094a902fece31942e8b8ef0ecf33a

    • SSDEEP

      49152:rl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8s:U

    • 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

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