Analysis

  • max time kernel
    121s
  • max time network
    95s
  • 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 02:42

General

  • Target

    0d895672b3a7be945dacbae1889a3666_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    0d895672b3a7be945dacbae1889a3666

  • SHA1

    6b23a6f5ad31381178b5ea49e3f392682e0cd9a6

  • SHA256

    9c4cd2817e60c762dc2a7bda6e77d7c8450866ad05793abeb4dfd4e182c6981b

  • SHA512

    730fd4dd9f5fb7b142df847cb9fafdae20a500f298e2a6c3d9918dfac6849c2f933d83b4a90ca41137718167bb1434a586eedbb12d5b734814e97998a44b7429

  • SSDEEP

    12288:kENwXG4GjeZHkwuPikQ7lKH5p5H9x1heZHkwuDifQJlKr5pgx+Td8zbg:kZXG4GjeZEXi37l6Br1heZE7i4JlAIw/

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\0d895672b3a7be945dacbae1889a3666_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0d895672b3a7be945dacbae1889a3666_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:3516
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4122\ie\MediaWatchV1home4122.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2104
    • 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 -p -s fhsvc
    1⤵
      PID:2300
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4612

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4122\ie\MediaWatchV1home4122.dll

        Filesize

        85KB

        MD5

        e8b72d6a26799e5a961c2ce80de7944c

        SHA1

        185f4cac501579388109e7aca6991fdbbf4cb308

        SHA256

        f9f8dac0a197904bb318559be10cdb4171f9633995f2529c83b4b8b53d0896e9

        SHA512

        d9144024a60f64122d50020de409aaae160e01c92c6e1e8b24277f1901ea5aa77c5314f6c2dae3ba62fe81412b03de457354e1047e44f64739d3f95fe81a1789

      • C:\Users\Admin\AppData\Local\Temp\nsd7418.tmp\aminsis.dll

        Filesize

        559KB

        MD5

        51ba1095f0ae45a2d444bea506cb9ad4

        SHA1

        038a5d53d055a6d440bd2c8864c2f51db206c5e5

        SHA256

        b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

        SHA512

        f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361