Analysis

  • max time kernel
    125s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13/10/2024, 04:43

General

  • Target

    3ddb6a87f6c1b9879bb7a1ecb5ce6a6d_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    3ddb6a87f6c1b9879bb7a1ecb5ce6a6d

  • SHA1

    bfd8c5c73300a8103bfe807c0a7d7bcf230dcacb

  • SHA256

    38c4146af9972c6f781c81cb5f130944a52e976fc40e7752ccaf66908b4a9308

  • SHA512

    d54f07578c9fe6249a344dbff25ea01a45704eed0177b7e8e87642660d3d166d04dc09250aa89a51769c8168a6e8598e1a2c2faf475bc76277a626ddc8d76f02

  • SSDEEP

    12288:CPm1sG4GjeZHkwuPikQ7lKH5p5H9x1UeZHkwu7iDQ7lKR5pUxDlfj:CwsG4GjeZEXi37l6Br1UeZETiM7lu8N1

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\3ddb6a87f6c1b9879bb7a1ecb5ce6a6d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3ddb6a87f6c1b9879bb7a1ecb5ce6a6d_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:2568
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3167\ie\MediaWatchV1home3167.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1560
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2532

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3167\ie\MediaWatchV1home3167.dll

    Filesize

    85KB

    MD5

    096d1d131f4bf8c8bb4a8f68514975d9

    SHA1

    16a5875776c4b3d9031df8bd55870a7c0468ed63

    SHA256

    59fad37ffee9af5378f1d7847b16ce4bfe611578b627e27d8c663aef59a1a9a9

    SHA512

    0040aa30bb239780b236dbc8dc875ee8b27bcf4af6688b107d91ee0dea352b64a20a7e0df7799bb7dbbb6bf6311a505b2b3dda42825286819b8f668f28e8a851

  • \Users\Admin\AppData\Local\Temp\nsoC8FB.tmp\aminsis.dll

    Filesize

    559KB

    MD5

    51ba1095f0ae45a2d444bea506cb9ad4

    SHA1

    038a5d53d055a6d440bd2c8864c2f51db206c5e5

    SHA256

    b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

    SHA512

    f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361