Analysis

  • max time kernel
    121s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2024, 23:03

General

  • Target

    153e030dbc0cf749ebf0077d030946ff_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    153e030dbc0cf749ebf0077d030946ff

  • SHA1

    f18347186307cb571e12e113ab9245195a3c25c1

  • SHA256

    a948090b517b881db82f51b9dab13c3079af92262264060c564f53946e5061f1

  • SHA512

    a55cae6ab9dedd24a7680c6bcd355a9654f72622d1e0e8b40550876567a93ffa1c10155b7cb3cc0becc4ecefce153778b1466f2c3de602219df37202e97a32f5

  • SSDEEP

    12288:VKjpeG4GjeZHkwuPikQ7lKH5p5H9x16eZHkwuDivQhlKL5p/xlolfh:VssG4GjeZEXi37l6Br16eZE7iohlknf4

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\153e030dbc0cf749ebf0077d030946ff_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\153e030dbc0cf749ebf0077d030946ff_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:4828
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home553\ie\MediaWatchV1home553.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:440
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4204
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:2236
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4492

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home553\ie\MediaWatchV1home553.dll

        Filesize

        85KB

        MD5

        ed265779982b55ddbcc8f67aebb0c119

        SHA1

        5f6a25084cb70181c82c08c427e516c939271134

        SHA256

        de7f64d3bdfeff31122684ea4f258f294817f06c575f65ed654e8901c06c3a94

        SHA512

        8efbc9f330439e5de1d8b05278bb2027abde8b9535d43fdded3568ac4bb0e714d10488515118869a50088ed0ce41152325c274fd1952f96065c6efc546efa5d3

      • C:\Users\Admin\AppData\Local\Temp\nsk852F.tmp\aminsis.dll

        Filesize

        559KB

        MD5

        51ba1095f0ae45a2d444bea506cb9ad4

        SHA1

        038a5d53d055a6d440bd2c8864c2f51db206c5e5

        SHA256

        b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

        SHA512

        f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361