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Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 03:08

General

  • Target

    38292a4139161a1245d6d60fadc25027_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    38292a4139161a1245d6d60fadc25027

  • SHA1

    29d16cfb1b87a0c8e0a243354cf8b8b31a62fbda

  • SHA256

    6922bffbab5cadc61a8a22ba1f0079ac9f8c91cf7f0fe899f4cb02211bdc2291

  • SHA512

    8b21242883ced7e6208ac351e063f9aa6ca33c94905ec7f37bf0ffee3fe7dd2e4588109eb29d4a216dd67a3d3ad80c1e7bef0d933021a6f0185863e89c79d066

  • SSDEEP

    12288:6uOaH3mwXbqEuG4GjeZHkwuPikQ7lKH5p5H9x1IeZHkwulinQZlKR5pxxoiRR:6VaHHoG4GjeZEXi37l6Br1IeZE9iQZls

Malware Config

Signatures

  • 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 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38292a4139161a1245d6d60fadc25027_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\38292a4139161a1245d6d60fadc25027_JaffaCakes118.exe"
    1⤵
    • 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:2196
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home1534\ie\MediaWatchV1home1534.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1936
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home1534\ie\MediaWatchV1home1534.dll

    Filesize

    85KB

    MD5

    2c4a5bf66e7eb00ae5533142f36cc7df

    SHA1

    a0d4e048f473209cfae52b909a156a554766a1e9

    SHA256

    8f1afd01be9fc579f625a2957db4c232a4dc999713a567f5e099889c2d3fbd25

    SHA512

    91088444c13c23fec188e02322d896a00a4fe69d69e2aff2df038c5f588cc956a1c0e9e903ca1f598b641c9db9d775c360d272673b36c483ae74c37e6fa180dd

  • \Users\Admin\AppData\Local\Temp\nsyCD2F.tmp\aminsis.dll

    Filesize

    559KB

    MD5

    51ba1095f0ae45a2d444bea506cb9ad4

    SHA1

    038a5d53d055a6d440bd2c8864c2f51db206c5e5

    SHA256

    b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

    SHA512

    f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361