General

  • Target

    d0a9d6d530b1f95fda03585df793378530b2df40746313cd91867d91d582eea0N

  • Size

    4.9MB

  • Sample

    240922-np33ssxemq

  • MD5

    aa805d00b0ea3937b482d8e7325b8570

  • SHA1

    d653bc8367a240f61a3d84ce05f1e7bbf7c31101

  • SHA256

    d0a9d6d530b1f95fda03585df793378530b2df40746313cd91867d91d582eea0

  • SHA512

    3adbb031a9f95dc5a9e6ebb538df8d53c56e6049653850875756659d37bb1ed808e30440bb0744f748647c58ce909deb61e4c275b04298f8901fc0d53b1d2a49

  • SSDEEP

    49152:Dl5MTGChZpxtlBBgxchXb/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

      d0a9d6d530b1f95fda03585df793378530b2df40746313cd91867d91d582eea0N

    • Size

      4.9MB

    • MD5

      aa805d00b0ea3937b482d8e7325b8570

    • SHA1

      d653bc8367a240f61a3d84ce05f1e7bbf7c31101

    • SHA256

      d0a9d6d530b1f95fda03585df793378530b2df40746313cd91867d91d582eea0

    • SHA512

      3adbb031a9f95dc5a9e6ebb538df8d53c56e6049653850875756659d37bb1ed808e30440bb0744f748647c58ce909deb61e4c275b04298f8901fc0d53b1d2a49

    • SSDEEP

      49152:Dl5MTGChZpxtlBBgxchXb/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