Analysis

  • max time kernel
    123s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-10-2024 10:46

General

  • Target

    2fbda1f04e07f617469fc01f98874b4b_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    2fbda1f04e07f617469fc01f98874b4b

  • SHA1

    d915eb6d9b4358851f2c9da0b495cf0b932ff97e

  • SHA256

    3c5654cbf41ed6b876b7d36359c38237e9ca70a20b557a1983c96816cb249818

  • SHA512

    3ae68eb66e345f2a4c91a6aa3b95e40fc8332aa8bcd2e3e346cca0a1763fc5ff0a2b415121f84267a4d7203e5a858fabc63043498eba2ac8621009908b31af6f

  • SSDEEP

    12288:w3O0G4GjeZHkwuPikQ7lKH5p5H9x1nQeZHkwuriZQZlKh5pQxlMjVWj:wZG4GjeZEXi37l6Br1nQeZEjiOZlWoft

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\2fbda1f04e07f617469fc01f98874b4b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2fbda1f04e07f617469fc01f98874b4b_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:2480
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home253\ie\MediaWatchV1home253.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2356
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsjD29C.tmp\aminsis.dll

    Filesize

    559KB

    MD5

    51ba1095f0ae45a2d444bea506cb9ad4

    SHA1

    038a5d53d055a6d440bd2c8864c2f51db206c5e5

    SHA256

    b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

    SHA512

    f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361

  • \Program Files (x86)\MediaWatchV1\MediaWatchV1home253\ie\MediaWatchV1home253.dll

    Filesize

    85KB

    MD5

    061dd84aea6a5df0cc940d2c4da3a409

    SHA1

    d7c1d15cd17b84793f9a8d31b7def924e3d510a3

    SHA256

    39522773bfdfc8d7dfb6c886e72ded4f07a5473a1f4aa4231a9592aa4c9ab759

    SHA512

    0e713714f1558d5b52c33d55d7400cf851fa07b5c842cd26f3fc3750c036c80031e62b8ce1c617160f299139d2a835e6c260cb6b2bb6770ddc16c7ae381de400