Analysis

  • max time kernel
    121s
  • max time network
    100s
  • 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 07:38

General

  • Target

    0e9f1aba13f20cfb900948267e24d8a3_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    0e9f1aba13f20cfb900948267e24d8a3

  • SHA1

    6acdfb9214ea831e6454cf7895eb2c2b25cbe0f7

  • SHA256

    fff735b78e50eaabe5f374ce6f5bc37929af6a132a8b54f84fce9a2a41d45067

  • SHA512

    814a2407e8ca6cf0b31efee25fd0075c77e59b5e2834f82091f34ee5272e218c91e1cf37d45b084dd251eb76f462f8d737bcc99b24fcda9b716586c56b7f63fd

  • SSDEEP

    12288:SsUlt4G4GjeZHkwuPikQ7lKH5p5H9x1SeZHkwuziDQBlKR5psxjlfv:S7oG4GjeZEXi37l6Br1SeZEriMBlm0NN

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\0e9f1aba13f20cfb900948267e24d8a3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0e9f1aba13f20cfb900948267e24d8a3_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:3564
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home72\ie\MediaWatchV1home72.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1792
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2196
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:4912
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:1552

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home72\ie\MediaWatchV1home72.dll

        Filesize

        85KB

        MD5

        0e402c1ce3cfd7a81a2f066229008a72

        SHA1

        11059f2fdf098c88f978f9451dbb44c7fefdd247

        SHA256

        6e0f1037510b868f238ea281ad09f4597733118f3d7e3c327a36b9bf4f5191e4

        SHA512

        270439ee44eab60fd83c92cc07dce4e1999392f6dec46ba3465fd2467ca54ac3f9f6deffaa78ba4fe095eb2ac600b0cfe6380d11fe0a7cd7b40e691d30c4efe1

      • C:\Users\Admin\AppData\Local\Temp\nsj9DF6.tmp\aminsis.dll

        Filesize

        559KB

        MD5

        51ba1095f0ae45a2d444bea506cb9ad4

        SHA1

        038a5d53d055a6d440bd2c8864c2f51db206c5e5

        SHA256

        b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

        SHA512

        f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361