General

  • Target

    1d3c9631120b0a114de42805b8758b6729e03c03f0dd40595b4a6fa3f93033a8N

  • Size

    4.9MB

  • Sample

    240920-dkkqjswckp

  • MD5

    4d71c688218e5a5e1a1bbddb3d352f40

  • SHA1

    4f862f38f95e19c1382fc029bd2521e686f652e7

  • SHA256

    1d3c9631120b0a114de42805b8758b6729e03c03f0dd40595b4a6fa3f93033a8

  • SHA512

    adf5d8c4146810cdcbfba0511568ccc428e2318a29cb6741563c96b26fb51da5a6de1627984f819de8ccb7c312e32639ee5aad8f45588e016957fb6ffe9ce9d6

  • SSDEEP

    49152:rl5MTGChZpxtlBBgxchXb/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

      1d3c9631120b0a114de42805b8758b6729e03c03f0dd40595b4a6fa3f93033a8N

    • Size

      4.9MB

    • MD5

      4d71c688218e5a5e1a1bbddb3d352f40

    • SHA1

      4f862f38f95e19c1382fc029bd2521e686f652e7

    • SHA256

      1d3c9631120b0a114de42805b8758b6729e03c03f0dd40595b4a6fa3f93033a8

    • SHA512

      adf5d8c4146810cdcbfba0511568ccc428e2318a29cb6741563c96b26fb51da5a6de1627984f819de8ccb7c312e32639ee5aad8f45588e016957fb6ffe9ce9d6

    • SSDEEP

      49152:rl5MTGChZpxtlBBgxchXb/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