Analysis

  • max time kernel
    121s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/10/2024, 04:58

General

  • Target

    2b44b92fdcc7391f0893ceb439018d69_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    2b44b92fdcc7391f0893ceb439018d69

  • SHA1

    614b343435e4da07823ff91a596d36d48404cdd3

  • SHA256

    0f5c5eb0d6dcc5cd5e27c2b57537e888396b810439060eafd1c350f300e2440b

  • SHA512

    34175d433526fb2d946b775e7336ab43b0a0ba02e44f2873c92e4b263cd7b467b7070971d155f7ba2f4dd2fd43c719de92906a157d382688be68af41a82458fe

  • SSDEEP

    12288:DFyQSo4WqJG4GQTq4OaQQTYJ8eP4/L5uO7D3f5BSq4WarQTwJ8ePB/p5uO71U26M:DSWqJG4GQm4OaHYJ8eP4D5uOHBBH4Waz

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\2b44b92fdcc7391f0893ceb439018d69_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2b44b92fdcc7391f0893ceb439018d69_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:3056
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release109\ie\RichMediaViewV1release109.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2124
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1932
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:1888
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:3864

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release109\ie\RichMediaViewV1release109.dll

              Filesize

              85KB

              MD5

              0710027109eef9724486ad91f4b3eda3

              SHA1

              57a0d0d20518050cbc8b4c339d604f13a2891246

              SHA256

              429d6a7d737a946f44b4e5cb93b1e20e6811ee34ad2484810fb6e6e272e4c982

              SHA512

              66bc11cd38535c05785606851386f0d06d7bb303acdf637023055ddaebdf06547d13c45f3766e26818f9a68ece4caa7d43ffcc5b7af76e6bf664192b4920f813

            • C:\Users\Admin\AppData\Local\Temp\nsxB372.tmp\aminsis.dll

              Filesize

              567KB

              MD5

              450753ad96785a240a39deccab3af0d0

              SHA1

              21c544064d2ffa6444508268ce258a330d459fc5

              SHA256

              1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

              SHA512

              c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab