Resubmissions

17/06/2023, 22:26

230617-2cljwadc7210

17/06/2023, 22:24

230617-2bhftsch8s10

General

  • Target
    ArceusX.exe
  • Size 7.2MB
  • Sample230617-2bhftsch8s
  • SHA256 bde88f3874e804af81f095f41330f1382c45572acef95f4eb60c81413cb28170
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      ArceusX.exe
    • Size 7.2MB
    • SHA256 bde88f3874e804af81f095f41330f1382c45572acef95f4eb60c81413cb28170
    • MD5 SHA1 SHA512 SSDEEP
    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • 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 NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks