General

  • Target

    SecuriteInfo.com.Variant.Razy.934040.7155.9937

  • Size

    2.4MB

  • Sample

    210926-xs8xwsfbfn

  • MD5

    5dc19fa9db54a8b2fbac18a1412165eb

  • SHA1

    d2300eacdcc517cfa065238d13355011cbf3b382

  • SHA256

    31ef0139218354a140f9feba6fc3ef036ce910a84babf8f27cccfa944dee1ccb

  • SHA512

    c71948e4e69a31ad324d0817305b8926e9f1d7d0610dae56f4894a5ac0a7307278e9ef749380793411d802174424ccb731044d6e64bc4fc9f05f5adc100b5f92

Malware Config

Targets

    • Target

      SecuriteInfo.com.Variant.Razy.934040.7155.9937

    • Size

      2.4MB

    • MD5

      5dc19fa9db54a8b2fbac18a1412165eb

    • SHA1

      d2300eacdcc517cfa065238d13355011cbf3b382

    • SHA256

      31ef0139218354a140f9feba6fc3ef036ce910a84babf8f27cccfa944dee1ccb

    • SHA512

      c71948e4e69a31ad324d0817305b8926e9f1d7d0610dae56f4894a5ac0a7307278e9ef749380793411d802174424ccb731044d6e64bc4fc9f05f5adc100b5f92

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks