General

  • Target
    31dac136c58a578cd442f036cfdcff9c.exe
  • Size 837KB
  • Sample210523-1vbqsr48g2
  • SHA256 a6fad6eda99cf8a1097f5222d9183323be396ad6ae37e3dfc364d196cf7f64fd
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • raccoon

Botnet
  • 1d76a465540f6a904ac9f1310fe3a3824b5b4549

Attributes
  • url4cnc

    https://tttttt.me/kokajakprozak

rc4.plain
rc4.plain

Targets

    • Target
      31dac136c58a578cd442f036cfdcff9c.exe
    • Size 837KB
    • SHA256 a6fad6eda99cf8a1097f5222d9183323be396ad6ae37e3dfc364d196cf7f64fd
    • MD5 SHA1 SHA512
    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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