General

  • Target
    femto_Master_v1.73.zip
  • Size 3.4MB
  • Sample260909-albx9azdqa
  • SHA256 a70f439926af6986543fa82ed20cd3e924b45371568b8be5b0d0a5fe546269ae
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      femto.Runtime.dll
    • Size 163KB
    • SHA256 6ec5c76fca2d5b159a8f25088562bf022bd59651dfab0085f0220f19b03c2db3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      femto.exe
    • Size 4.2MB
    • SHA256 fbd2d3485c44788c1170ca9ba73a3b1d4e6c0323039c66c22d132c38aa0aace3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • 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.

    • Identifies Wine through registry keys

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

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks