General

  • Target
    random.exe
  • Size 4.4MB
  • Sample250404-klrntattd1
  • SHA256 7744c24650c3210f4510b05128c3b6dfdcd6b6f9de9e6c3ce72df0f0f10550b5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • gcleaner

C2
  • 185.156.73.98

  • 45.91.200.135

Targets

    • Target
      random.exe
    • Size 4.4MB
    • SHA256 7744c24650c3210f4510b05128c3b6dfdcd6b6f9de9e6c3ce72df0f0f10550b5
    • MD5 SHA1 SHA512 SSDEEP
    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Gcleaner family

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

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks