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Analysis

  • max time kernel
    117s
  • 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, 04:21

General

  • Target

    3dc25ab858a6f8bbb0b7132feb906183_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    3dc25ab858a6f8bbb0b7132feb906183

  • SHA1

    2b3239f65f13a2958f62e2ae9d7df0c237ececaf

  • SHA256

    3c707acf9107ff56f664d2fd5592b6a601e30eb625e9d4a4b63ef8f8b52eea39

  • SHA512

    17a95303b190bd3ebedaa469c8f23bd022ea9b63b5fb4b62f92ab452c66ffdfd993c1c6214b45dc90dd48ef411badeb4ef575e6ddc4ead7a6f647667d0fb3acd

  • SSDEEP

    12288:sbHc6G4GjeZHkwuPikQ7lKH5p5H9x1+eZHkwuriZQZlKh5pQxlMjVWr:sbhG4GjeZEXi37l6Br1+eZEjiOZlWof5

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\3dc25ab858a6f8bbb0b7132feb906183_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3dc25ab858a6f8bbb0b7132feb906183_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:2392
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home190\ie\MediaWatchV1home190.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2336
    • 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\MediaWatchV1home190\ie\MediaWatchV1home190.dll

    Filesize

    85KB

    MD5

    8a31fa529d7884ad61ea6b96ea498765

    SHA1

    79554488181e5e9440c8e4d48b59d778a3c432cc

    SHA256

    b785e662477a595e8ef2b4ed35291f1e8a0d0710c5a369abc692cc6fa50d5ab0

    SHA512

    1586334af9281a86df105a0e91970cbab87ff27d9ab07cf94e7a49a0a46af525da1c639764612432de7556c3e7b5be988eb5529fdc58bffe9f335e422679026d

  • \Users\Admin\AppData\Local\Temp\nsoBE9F.tmp\aminsis.dll

    Filesize

    559KB

    MD5

    51ba1095f0ae45a2d444bea506cb9ad4

    SHA1

    038a5d53d055a6d440bd2c8864c2f51db206c5e5

    SHA256

    b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

    SHA512

    f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361