Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 00:31

General

  • Target

    0d1b4da6cfd38e56ea291dc268d9ae67_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    0d1b4da6cfd38e56ea291dc268d9ae67

  • SHA1

    097fda9a4b152d13ced2002a30fd45f7923580a8

  • SHA256

    88de9f0225e7d296dca4fa7dbe24b35ec9146ca5008eb02086f6277b94f9ea54

  • SHA512

    5756f4861c2674dba7eef0416b1e6e50adc8c3f96a4fcf886c04d2fc34c90b74252dcb1db4ebe3d50c4c1ede699e604810906e97fb1f5a93688e7e4266a4bfe6

  • SSDEEP

    12288:SLqzlx/NG4GQTq4OaQQTYJ8eP4/L5uO7D3f5B2q4yajQTEJ8ePv/b5uO7aLvHPA+:SLq3/NG4GQm4OaHYJ8eP4D5uOHBBb4yz

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\0d1b4da6cfd38e56ea291dc268d9ae67_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0d1b4da6cfd38e56ea291dc268d9ae67_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:1132
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release744\ie\RichMediaViewV1release744.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1456
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4496
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:2936
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:3808

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release744\ie\RichMediaViewV1release744.dll

              Filesize

              85KB

              MD5

              36a02c7841f472f0f1e937e117f707ee

              SHA1

              f3a8e2c7ab1076069b610767cdb80d3b7db9ff04

              SHA256

              372721de013be14d96b9f51f60452495f18094cea2bca981eab2735f58ea4552

              SHA512

              9513c984b98eed4e420fa5b125399d67b6d4cafaaca92ca59d6db72465839f0eb81dd6d92630822492231483dad7259f42e4d818176d562a7ac48490edb88508

            • C:\Users\Admin\AppData\Local\Temp\nsf6E1C.tmp\aminsis.dll

              Filesize

              567KB

              MD5

              450753ad96785a240a39deccab3af0d0

              SHA1

              21c544064d2ffa6444508268ce258a330d459fc5

              SHA256

              1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

              SHA512

              c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab