General

  • Target

    5f86384891b455ddb5d94b659c947ad67b76b282fcb268f12a31a2f3005b19a3N

  • Size

    4.9MB

  • Sample

    241010-w1sp7szdpf

  • MD5

    1ee8e7191df743349bbc4bcd6e3570a0

  • SHA1

    aafd7860457e3a7ff9b53457e9c30451785fba60

  • SHA256

    5f86384891b455ddb5d94b659c947ad67b76b282fcb268f12a31a2f3005b19a3

  • SHA512

    fc08546b960bd11a31f76628a5eacaf4c811d312ccca0121f7a18f01f578360b07ff38193e55f46ccb8429ee73d224532cfcab3511831be4722072d13e73e10d

  • SSDEEP

    49152:bl5MTGChZpxtlBBgxchXb/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

      5f86384891b455ddb5d94b659c947ad67b76b282fcb268f12a31a2f3005b19a3N

    • Size

      4.9MB

    • MD5

      1ee8e7191df743349bbc4bcd6e3570a0

    • SHA1

      aafd7860457e3a7ff9b53457e9c30451785fba60

    • SHA256

      5f86384891b455ddb5d94b659c947ad67b76b282fcb268f12a31a2f3005b19a3

    • SHA512

      fc08546b960bd11a31f76628a5eacaf4c811d312ccca0121f7a18f01f578360b07ff38193e55f46ccb8429ee73d224532cfcab3511831be4722072d13e73e10d

    • SSDEEP

      49152:bl5MTGChZpxtlBBgxchXb/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