General

  • Target
    05a5192a4c1d2bb3ce1da9bb585ff5b9eae77c431453443c9a732811180b62dc_unpacked
  • Size 1.0MB
  • Sample250718-rwpers1kx9
  • SHA256 feb286c00bac69c600917fe088321491a185c4adac8bf620d92f751e1c27a28f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 1.3.0.0

Botnet
  • firefox

C2
  • grigori.ddns.net:5555

Mutex
  • MUTEX_fXWPTQsXq0qoVReldc

Attributes
  • encryption_key

    0yPcCrwC7TgqqEYKrt5e

  • install_name

    firfox.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    firefox

  • subdirectory

    firfox

Targets

    • Target
      05a5192a4c1d2bb3ce1da9bb585ff5b9eae77c431453443c9a732811180b62dc_unpacked
    • Size 1.0MB
    • SHA256 feb286c00bac69c600917fe088321491a185c4adac8bf620d92f751e1c27a28f
    • MD5 SHA1 SHA512 SSDEEP
    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks