Analysis

  • max time kernel
    121s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2024 23:01

General

  • Target

    3c7c662d19e7961038eb817893d7c492_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    3c7c662d19e7961038eb817893d7c492

  • SHA1

    fc9eeec35e96c9167e048eea797f9ccad890cd70

  • SHA256

    793cb7063c59c9224b893bf4a946544513fa69c803862e6d103067b0cfedf514

  • SHA512

    e076db1ae1c9334128d42b3c9efc8713393e3db40c51c8a6364b7975eb882503c97c3c2fd519e10ffa93daa77a7d78fb0b1a352f4a04ffedfc2c29e181d3b4fe

  • SSDEEP

    12288:GstbU7JIG4GQTq4OaQQTYJ8eP4/L5uO7D3f5BLq4Wa/QTKJ8eP9/75uO7eU266Bi:GxVIG4GQm4OaHYJ8eP4D5uOHBBe4Waek

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\3c7c662d19e7961038eb817893d7c492_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3c7c662d19e7961038eb817893d7c492_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:220
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release1045\ie\RichMediaViewV1release1045.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1120
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2276
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:464
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:2312

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release1045\ie\RichMediaViewV1release1045.dll

        Filesize

        85KB

        MD5

        7d46947a2bcccca4a1b4a87c3a614e4c

        SHA1

        eabb2821e8d8251a9458a3747e60bb0cb46d0355

        SHA256

        f1083c90394168cb26c2b8066fca3387d97b125e21465df46864465b54c5042d

        SHA512

        e2a70c91f46abf613850959f9f973a1b3a4884111c33a3de23c2756ff082a5b2895454cbeb952e2b9ed7a964733bfec6540582c3f26aa1bb999a4620ffe43cdf

      • C:\Users\Admin\AppData\Local\Temp\nsvBB90.tmp\aminsis.dll

        Filesize

        567KB

        MD5

        450753ad96785a240a39deccab3af0d0

        SHA1

        21c544064d2ffa6444508268ce258a330d459fc5

        SHA256

        1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

        SHA512

        c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab