General

  • Target
    37aa26e9208b0930fb1068d718d2e32e.exe
  • Size 4.9MB
  • Sample221015-j9j37sfdc8
  • SHA256 1a93d204cd4bf9b77434af18be074c47ad7fcebdd109ecc87f77d6b78a9ff2b3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • colibri

Version
  • 1.2.0

Botnet
  • Build1

C2
  • http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

  • http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target
      37aa26e9208b0930fb1068d718d2e32e.exe
    • Size 4.9MB
    • SHA256 1a93d204cd4bf9b77434af18be074c47ad7fcebdd109ecc87f77d6b78a9ff2b3
    • MD5 SHA1 SHA512 SSDEEP
    • 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.

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks