Analysis

  • max time kernel
    141s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2024 22:08

General

  • Target

    4466c3e0450c6e5f63a28a4ab93376fb_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    4466c3e0450c6e5f63a28a4ab93376fb

  • SHA1

    db0d84d2693ec587aecc0833d56fe32348b01342

  • SHA256

    122900dc02a11158ffd7767146ba0d666d0fe84ea95ac4b89901bcd29bf05ade

  • SHA512

    48522b842e5d426db36e402fa9217b9d6972c35e88bab44a6bc8d790495fe12c47bff05d71cc382468ac8c8910a3ff36bf1426841b510d7b8629423a357f9616

  • SSDEEP

    12288:1c1Frki2G4GQTq4OaQQTYJ8eP4/L5uO7D3f5BNq4yajQTEJ8ePv/b5uO7aLvHPAc:1Ir2G4GQm4OaHYJ8eP4D5uOHBBw4yaq1

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 22 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4466c3e0450c6e5f63a28a4ab93376fb_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4466c3e0450c6e5f63a28a4ab93376fb_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3848
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release507\ie\RichMediaViewV1release507.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:3636
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2340
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:3268
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4092

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release507\ie\RichMediaViewV1release507.dll

        Filesize

        85KB

        MD5

        f6996c599f61a8b6e76e4f4f9f4a76ad

        SHA1

        991983774e3ae140dde35d84bf6c55aef90c61f2

        SHA256

        bf7a4b14e50121de2efe4494d0070615936cc79ddd3e8e67d064c357f7cdb961

        SHA512

        8197f457bd9fed50d965e65e189ca77386c64f7be5c7596893bfec13b96bc664a515a663212c02b66b52accaaed9a3f704fc14130fa07484438998329734b109

      • C:\Users\Admin\AppData\Local\Temp\nsx9A0E.tmp\aminsis.dll

        Filesize

        567KB

        MD5

        450753ad96785a240a39deccab3af0d0

        SHA1

        21c544064d2ffa6444508268ce258a330d459fc5

        SHA256

        1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

        SHA512

        c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab