General

  • Target
    fdf.exe
  • Size 3.0MB
  • Sample260923-zbtsras19q
  • SHA256 811cd46ecbb486d7b506e8af90493a9bfded0d43e49d652f9a46c5e5410f853f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • orcus

C2
  • 2.26.55.223:10927

Mutex
  • 164643b0d54b4b91a92bb42f2a12019f

Attributes
  • autostart_method

    Disable

  • enable_keylogger

    false

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\OrcusWatchdog.exe

Targets

    • Target
      fdf.exe
    • Size 3.0MB
    • SHA256 811cd46ecbb486d7b506e8af90493a9bfded0d43e49d652f9a46c5e5410f853f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Family: Orcus

      Orcus is a Remote Access Trojan that is being sold on underground forums.

    • Suricata alert: Orcus RAT Malware Inbound X.509 Certificate

      Network activity triggered a Suricata alert

    • Orcurs Rat Executable

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 web browsers

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

    • 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.

MITRE ATT&CK Enterprise v16

Tasks