Extracted

• • Target

    7c697999000d0ed6ceb41eb5eaf6e51c_JaffaCakes118

  • Size

    15.1MB

  • MD5

    7c697999000d0ed6ceb41eb5eaf6e51c

  • SHA1

    c67839d60fc4949ddc8c709351342fcbdf204996

  • SHA256

    37eafb5b25afceacaa6258df49c31f8a9eee650d48dbcaa5e67e054473de087c

  • SHA512

    7c0e4eaa58c3f73e496942daee079ec30e83f3c21b3c133e9f1831d0801f44170da867db680343dfadcf7cd62370474e646ed9f593a5ab31c148b81d33c1b61a

  • SSDEEP

    393216:lHjgup5PtaWM4yI5IR+zcryos1A49/82O9ssxouKj7uSxMzw5o:lH8e5PtaWMS94GRTBK7xLK/uSxMzX

  Score

  10^/10

  wshratbootkitevasionexecutionpersistencetrojan

  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

    trojanwshrat

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

    evasion

  • Blocklisted process makes network request

  • 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.

  • Drops startup file

  • 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.

    evasion

  • Loads dropped DLL

  • Adds Run key to start application

    persistence

  • Checks whether UAC is enabled

    evasiontrojan

  • 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.

    bootkitpersistence

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  behavioral1behavioral2