General

  • Target

    9cf3593e9d3fbfe75dfc972cc38287ffffb1a7f5bc6f73ef0fb0d7232554c975N

  • Size

    4.9MB

  • Sample

    241001-n98tsaycnr

  • MD5

    f32026ab859baf87e56f628b87ec52a0

  • SHA1

    926a579598eb4364b9cd10a036a294809fd3cb16

  • SHA256

    9cf3593e9d3fbfe75dfc972cc38287ffffb1a7f5bc6f73ef0fb0d7232554c975

  • SHA512

    69995e9225f48252f83d3b047cc665beaefc7761e6179e83165aaf21ca941829929b1cd1cdef9a9424ceeb60bf8eb54130a1472cbc55b1a2ac65a31a32278b6c

  • 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

      9cf3593e9d3fbfe75dfc972cc38287ffffb1a7f5bc6f73ef0fb0d7232554c975N

    • Size

      4.9MB

    • MD5

      f32026ab859baf87e56f628b87ec52a0

    • SHA1

      926a579598eb4364b9cd10a036a294809fd3cb16

    • SHA256

      9cf3593e9d3fbfe75dfc972cc38287ffffb1a7f5bc6f73ef0fb0d7232554c975

    • SHA512

      69995e9225f48252f83d3b047cc665beaefc7761e6179e83165aaf21ca941829929b1cd1cdef9a9424ceeb60bf8eb54130a1472cbc55b1a2ac65a31a32278b6c

    • 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