General

  • Target
    873d16767e0895ff109b2a2ae61335f5_JaffaCakes118
  • Size 175KB
  • Sample240603-rssm1shd9v
  • SHA256 77da860cd56ac35ea77e4768745a0c36a3662ad08fca31aa6a5ab1cec5c3d4e0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      873d16767e0895ff109b2a2ae61335f5_JaffaCakes118
    • Size 175KB
    • SHA256 77da860cd56ac35ea77e4768745a0c36a3662ad08fca31aa6a5ab1cec5c3d4e0
    • MD5 SHA1 SHA512 SSDEEP
    • Adds autorun key to be loaded by Explorer.exe on startup

    • Modifies WinLogon for persistence

    • Downloads MZ/PE file

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

    • Modifies AppInit DLL entries

    • Modifies Installed Components in the registry

    • Registers new Print Monitor

    • Checks computer location settings

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

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • 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

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Legitimate hosting services abused for malware hosting/C2

    • Maps connected drives based on registry

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

    • Modifies WinLogon

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks