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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    02/10/2024, 10:13

General

  • Target

    0a29134064c19d23dc603947eb8e44a7_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    0a29134064c19d23dc603947eb8e44a7

  • SHA1

    a8388c728afba35e4cc231afed9041ba3edde255

  • SHA256

    138ad0b7d4f6f64be0b7a6227a794662272858a1a2f5665b6c5f9a4e0f282e85

  • SHA512

    59bb28c0c3732ca465c39f05f96abe203364e4d1d2e4c0d5e9bcca37aa2bdbc9d099d07fefdafb8b72654b4c1eae907738690d63bf82da0d3a093055ac3aa929

  • SSDEEP

    12288:MBAKKzA/yG4GQTq4OaQQTYJ8eP4/L5uO7D3f5BnSq4IalQTSJ8ePt/t5uO7EU26m:MBAXAqG4GQm4OaHYJ8eP4D5uOHBBH4IH

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\0a29134064c19d23dc603947eb8e44a7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0a29134064c19d23dc603947eb8e44a7_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:2416
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release203\ie\RichMediaViewV1release203.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2136
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release203\ie\RichMediaViewV1release203.dll

    Filesize

    85KB

    MD5

    f4ddc34a9b812597c86d0bcee2da1c81

    SHA1

    7ba6c712bb176f566f44874a9218b6852e59cf4b

    SHA256

    baeed16699b3c67d4801c1722017c9d95dace3e7c8ec97898c7f1282c9ec6c3a

    SHA512

    fc22416eed502cd486ceeb607df507a43684647a630fcaf6715e8f9f2a2535538d55c58923335126bb7523d937025f005ae9b11fb4aa7451251329822f10a6d0

  • C:\Users\Admin\AppData\Local\Temp\nsyC84F.tmp\aminsis.dll

    Filesize

    567KB

    MD5

    450753ad96785a240a39deccab3af0d0

    SHA1

    21c544064d2ffa6444508268ce258a330d459fc5

    SHA256

    1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

    SHA512

    c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab