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, 07:56

General

  • Target

    0eaedf5c197a8e9de22eaece9126ec49_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    0eaedf5c197a8e9de22eaece9126ec49

  • SHA1

    4b97b39c0263326fe2eb7b5477ef13da4db8633c

  • SHA256

    c6fc72284a7ed951f7fd4678e900643581c2ba0259b344613e05c2d9ae626ce5

  • SHA512

    8d2978a066ff745ebbd1284dbe2171ead9b1adb0b9173306beb45f5d4127e606a147e4eaa8f76bf6026cd44df88e39bb359d85049fc586ddb4d47b1ce2495763

  • SSDEEP

    12288:TFBBh0Nr4LUG4GjeZHkwuPikQ7lKH5p5H9x1feZHkwuli3QblKL5pFx3iRT:TFBb0l4YG4GjeZEXi37l6Br1feZE9iAR

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\0eaedf5c197a8e9de22eaece9126ec49_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0eaedf5c197a8e9de22eaece9126ec49_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:1360
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4624\ie\MediaWatchV1home4624.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2868
    • 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 -s WPDBusEnum
    1⤵
      PID:1832
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4588

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4624\ie\MediaWatchV1home4624.dll

        Filesize

        85KB

        MD5

        1a792d0b82e1c129e024bf2c49afcd48

        SHA1

        4f4427483cd2b0b204c7dac6e80a537c30d34781

        SHA256

        17568d39a1dae4a6e187235d48234d1f2acb97dc14a27d975428d51c38f82140

        SHA512

        da9a44d77620fc02c4fb5f9c88ef0a9e76d19b66fc8dac60c4dd0afaac2461b5a6cc117355e766f107317b6e9ab65c8da82dd4b0f649009c9794a183672d3ef8

      • C:\Users\Admin\AppData\Local\Temp\nsb95E8.tmp\aminsis.dll

        Filesize

        559KB

        MD5

        51ba1095f0ae45a2d444bea506cb9ad4

        SHA1

        038a5d53d055a6d440bd2c8864c2f51db206c5e5

        SHA256

        b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

        SHA512

        f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361