General

  • Target

    412289c384f270c9ea81d7498dedcb4be1f202f9dd74a1c480374745e9c1e36fN

  • Size

    4.9MB

  • Sample

    241002-y7rslaycme

  • MD5

    6d28b82da857e5f86596ed8e27efb260

  • SHA1

    05fb88ba2cf61b8d55fea21d273fa2f2cb6afa9a

  • SHA256

    412289c384f270c9ea81d7498dedcb4be1f202f9dd74a1c480374745e9c1e36f

  • SHA512

    2cb1a0bef640341cf2cbda78430b18fd8218fd4f19a0801afb2a64223551902753a99892625be76a6d4aed34bb192408921206663d64b916e0298d5fa5572fdf

  • 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

      412289c384f270c9ea81d7498dedcb4be1f202f9dd74a1c480374745e9c1e36fN

    • Size

      4.9MB

    • MD5

      6d28b82da857e5f86596ed8e27efb260

    • SHA1

      05fb88ba2cf61b8d55fea21d273fa2f2cb6afa9a

    • SHA256

      412289c384f270c9ea81d7498dedcb4be1f202f9dd74a1c480374745e9c1e36f

    • SHA512

      2cb1a0bef640341cf2cbda78430b18fd8218fd4f19a0801afb2a64223551902753a99892625be76a6d4aed34bb192408921206663d64b916e0298d5fa5572fdf

    • 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