Analysis

  • max time kernel
    121s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2024, 06:03

General

  • Target

    3e32fde1de97aa5661e97f5221082a82_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    3e32fde1de97aa5661e97f5221082a82

  • SHA1

    b705f243976bef4add28f0fac2e67915a94ab1c1

  • SHA256

    b92db64944c81170e05d2297026ce88068993502796e88c0cd7137dbc85c292b

  • SHA512

    b509e6c9d10afdfa9a048baef3c72a6d7109ac3b171427da88a1bc2dfd031fa6fa219b643b9a9340d69e8008d77bbbfa36c3f1d78ea1a6a3f2e706f61e813e81

  • SSDEEP

    12288:of0o0kG4GQTq4OaQQTYJ8eP4/L5uO7D3f5BTq42aFQTGJ8ePN/r5uO7+ApIz/X:of9G4GQm4OaHYJ8eP4D5uOHBBm42acGW

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\3e32fde1de97aa5661e97f5221082a82_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3e32fde1de97aa5661e97f5221082a82_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:4396
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release296\ie\RichMediaViewV1release296.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2272
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4992
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:1652
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:3376

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release296\ie\RichMediaViewV1release296.dll

        Filesize

        85KB

        MD5

        5fafc89bbb9a7651c698c4630f24a8dc

        SHA1

        6336ef3feeb2b26447edf976976f0a0645f13c19

        SHA256

        cb60707ed8906c1c70d9fd40d8cf612dfb926ae17df8e0da3e58c3387aa8d71c

        SHA512

        5ed63a2d92489d889d5edf35e45f262ed1e230b36d9671681b9c263269e969088c2563ce920b4b606a162618a5739177b92a3862b1876119cbea2829df018af5

      • C:\Users\Admin\AppData\Local\Temp\nsuB7E7.tmp\aminsis.dll

        Filesize

        567KB

        MD5

        450753ad96785a240a39deccab3af0d0

        SHA1

        21c544064d2ffa6444508268ce258a330d459fc5

        SHA256

        1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

        SHA512

        c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab