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Analysis

  • max time kernel
    150s
  • max time network
    15s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    01/09/2024, 01:46

General

  • Target

    cdfaabe544a4b3a1fe3574561932bc46_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    cdfaabe544a4b3a1fe3574561932bc46

  • SHA1

    498fd62df89689b03593876b19b1bd317ce375c6

  • SHA256

    d7231c9941f8b195f8e380c7f44b5bd114e46ba5afaf67b3b01a3d4ac7f40291

  • SHA512

    42f4bcb4db36167256991c1859ead01eec56784bbf3ccf0ae8d109ff3f6d2774970c4376c3146228d819fe9ea3aa339647ae0719dbe8e60b6a7b6e0f4ae652f5

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6t:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5M

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 6 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies registry class 19 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cdfaabe544a4b3a1fe3574561932bc46_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cdfaabe544a4b3a1fe3574561932bc46_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2556
    • C:\Windows\SysWOW64\yutdzcdxwp.exe
      yutdzcdxwp.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2784
      • C:\Windows\SysWOW64\ooljcsej.exe
        C:\Windows\system32\ooljcsej.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2676
    • C:\Windows\SysWOW64\znillyioathczsl.exe
      znillyioathczsl.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2880
    • C:\Windows\SysWOW64\ooljcsej.exe
      ooljcsej.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2848
    • C:\Windows\SysWOW64\ffrapicsnadth.exe
      ffrapicsnadth.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2812
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1996

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

      Filesize

      512KB

      MD5

      0b5e34c8c8b7b9c4f59f7af01c7e5e93

      SHA1

      aeea2944f0a7378fc803a0cc893fd7d8ce7d7d55

      SHA256

      da549eb45402b34e7bda9374d50a1a771657528ea8897ecca4717c6369144a4e

      SHA512

      91f1bd72166e3bfcdcf48c7c7dfcdb27552651505a591cbb03eb9983d400c152dd1df0c5dbf69dd47caad1aed9dc5872dd03ce8d31919a62d86fda74a7b903ac

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      19KB

      MD5

      35b7d137033b4c9bbe88ed4b07e8fb4e

      SHA1

      9c41d9e83f44c3b026e477a37a4f42ee126f47bd

      SHA256

      cef5ebef61ad9246a5ef0c26cf5324b88a647d4f2fcb792a5be14f6eeb4e5b03

      SHA512

      3b2d0a65f873ddd869820e30b0fe434a0c67264db6cafc53fdb02f2d785d527c0cbaaff8ed20eeac0e494f7f26b6cc0a61d9c16ef1927dceac4c1aa84998bca3

    • C:\Windows\SysWOW64\ffrapicsnadth.exe

      Filesize

      512KB

      MD5

      a7ff3ace30a54fb7ee6c8fd5161ccf0b

      SHA1

      f4cf64fae4e357d62ad861b1446b7e37aa46af8f

      SHA256

      5a92df8e8d3feb82c67537b9aa72c6536f5c4b7b50c4efc261e4ec7606158264

      SHA512

      fcadb8bc48cd5a23b72fc62edaf27d8a59d5bc0f3f5fa73c660ba1ad3c1d6ed18c53efea6dfc85ba81ce614562b187ef1ef4814d26008169a66fc70d56b64101

    • C:\Windows\SysWOW64\znillyioathczsl.exe

      Filesize

      512KB

      MD5

      1e28c66fb5d10141f12ef867a78fda58

      SHA1

      22fcffbd4f69d77dab9040157e2ee7b75b7f3353

      SHA256

      32fbbe51256ec9dc03a229f6f617d9637f8b780d729369defb0b6908e3e293ff

      SHA512

      97cf770780bd9bc8be3fb09bb28a660bae3a419394a286a30d15ff97ea2d12082da14f14c4665c7839917eb513a91c05da4728e97f4d00a40de4a508f5d17a77

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\ooljcsej.exe

      Filesize

      512KB

      MD5

      7511d087ff5cbccf4f0bd3430bf26fdd

      SHA1

      1f71b109fac49df02412c52cbbdbefe3a23be524

      SHA256

      c6559be49f702d932727ee8f9ac8dc0622532532fe460680cda16f200e8c5961

      SHA512

      ad2ffbc9f3af84123ee3f6b9c938241d5c41d2d7e1ea521334093d934b705a9d2ffd37e0971cf48fd83c86ed709614ecd05d0beec2f99703e0ff489198cd2ebb

    • \Windows\SysWOW64\yutdzcdxwp.exe

      Filesize

      512KB

      MD5

      4661809d6a739712aa22377f09af8133

      SHA1

      de0de7adf495192d5eed4beaf2addd3acc3ee39b

      SHA256

      6f768f8d4c9df9e8417167e5591b714c0f06fcdb93975197c0ddbec26828a0a1

      SHA512

      df66e1a9a33f58d7ad6a3539f3327208c176d7c9c4cba158b5ce4c6fefa7e85121a48d24bcba71dc74521c1e8bc73bf8a4598818359ed6545a92ac8b72d4721e

    • memory/2556-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2640-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2640-91-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB