Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13/10/2024, 13:51

General

  • Target

    4037588cc92a331eb4009389b958a966_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    4037588cc92a331eb4009389b958a966

  • SHA1

    4771c12b1b365110b04666c8d277321e606344e9

  • SHA256

    086c127decbbf25dbd44361729817a89180ae5eede3a507bc21c5bcc81e347c1

  • SHA512

    02332666ab360212e3e5e76b8848191de52bd0cc96ccf9ffa415d1c9064ce2474baaf611c79487b96aec4afabf2b0465b6e070d4c8325c31c76a9b448b323f96

  • SSDEEP

    12288:aJ0Y5GG4GjeZHkwuPikQ7lKH5p5H9x1KeZHkwuLiDQTlKJ5p+xWlfR:aJ05G4GjeZEXi37l6Br1KeZEjiMTlmWY

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\4037588cc92a331eb4009389b958a966_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4037588cc92a331eb4009389b958a966_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:2508
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3653\ie\MediaWatchV1home3653.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1628
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3653\ie\MediaWatchV1home3653.dll

    Filesize

    85KB

    MD5

    4226815ddcf0528f89ef8f04946f1ea2

    SHA1

    90fd7005af5bd31a4308075534ad8ea9cc98c0ab

    SHA256

    6af5aac1db59e1e94a9c6bb9612b024e4bc9208575565368b902409e57c78e20

    SHA512

    c721d6d14570cc7d27a86ab336bb26cabafb4be61adbf5715d1f663258dd7aae173b39add9409a0d52a3a8611b1198147fb123383dff927ca569a86ceaf744d8

  • \Users\Admin\AppData\Local\Temp\nsdA7D4.tmp\aminsis.dll

    Filesize

    559KB

    MD5

    51ba1095f0ae45a2d444bea506cb9ad4

    SHA1

    038a5d53d055a6d440bd2c8864c2f51db206c5e5

    SHA256

    b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

    SHA512

    f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361