General

  • Target

    76431e61e2c699aa3dd4ed608c34b56c_JaffaCakes118

  • Size

    2.0MB

  • Sample

    240526-v5zhwaeb5s

  • MD5

    76431e61e2c699aa3dd4ed608c34b56c

  • SHA1

    d282c7fa4c12de3bcd338f5a57f50a98ce9e9b1f

  • SHA256

    ef84d70a012ffe0f9d8b459c10c0c2744892dde7b2d8938c95f03fdcccad6347

  • SHA512

    858f9017309b5233163780a51563b1cccb48affd3ee61cfaa7b22215b78e9c1ee7636f19df919bc94ede75648261f8c921b24ed9898bc358b2f696dae529b97f

  • SSDEEP

    49152:sbJ0WAn1im7D9cSjMK6a4YSi8UFf9SfYFm4EnXUVf:+J0WAn1j9tv5TFf9SwFLEnXu

Malware Config

Targets

    • Target

      76431e61e2c699aa3dd4ed608c34b56c_JaffaCakes118

    • Size

      2.0MB

    • MD5

      76431e61e2c699aa3dd4ed608c34b56c

    • SHA1

      d282c7fa4c12de3bcd338f5a57f50a98ce9e9b1f

    • SHA256

      ef84d70a012ffe0f9d8b459c10c0c2744892dde7b2d8938c95f03fdcccad6347

    • SHA512

      858f9017309b5233163780a51563b1cccb48affd3ee61cfaa7b22215b78e9c1ee7636f19df919bc94ede75648261f8c921b24ed9898bc358b2f696dae529b97f

    • SSDEEP

      49152:sbJ0WAn1im7D9cSjMK6a4YSi8UFf9SfYFm4EnXUVf:+J0WAn1j9tv5TFf9SwFLEnXu

    • 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.

    • Deletes itself

    • Identifies Wine through registry keys

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

    • Reads user/profile data of web browsers

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

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks