General

  • Target

    5f6123163b483cf0d066198718dcf531abedfd43c880ba0252fcf7d55340fa4fN

  • Size

    4.9MB

  • Sample

    241014-ssnvhawajl

  • MD5

    4cb19f29a50b590b4e049659105ec340

  • SHA1

    80bc53b20a62cf2d790376f121ec32ef2b1dc905

  • SHA256

    5f6123163b483cf0d066198718dcf531abedfd43c880ba0252fcf7d55340fa4f

  • SHA512

    53f74cb5cb83953316d0801c003e29c090acf4bb3d28f924ce70c188475dc052844abe7fd06825e068453496a5106f23d81e574c405b8887fa6445a71ed9ddd9

  • 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

      5f6123163b483cf0d066198718dcf531abedfd43c880ba0252fcf7d55340fa4fN

    • Size

      4.9MB

    • MD5

      4cb19f29a50b590b4e049659105ec340

    • SHA1

      80bc53b20a62cf2d790376f121ec32ef2b1dc905

    • SHA256

      5f6123163b483cf0d066198718dcf531abedfd43c880ba0252fcf7d55340fa4f

    • SHA512

      53f74cb5cb83953316d0801c003e29c090acf4bb3d28f924ce70c188475dc052844abe7fd06825e068453496a5106f23d81e574c405b8887fa6445a71ed9ddd9

    • 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