General

  • Target
    https://github.com/jellobean/Extreme-Injector-v3.7.3-Desktop/releases/download/DLL-INJECTOR/ExtremeInjector.zip
  • Sample260502-tx24csb171

Malware Config

Targets

    • Target
      https://github.com/jellobean/Extreme-Injector-v3.7.3-Desktop/releases/download/DLL-INJECTOR/ExtremeInjector.zip
    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks