Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/09/2024, 09:00

General

  • Target

    ed41a69b8fbfbdee0148eba63b9c6e01_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    ed41a69b8fbfbdee0148eba63b9c6e01

  • SHA1

    f67434b508c5eed439f835407e228e8502585786

  • SHA256

    cc3e5058ac37e5db39fa7e4ea00e44ec20f06400a3ea2e4930da4cadf77b2546

  • SHA512

    15ec8b4857834c9bff2eb44eec9e7791c8811f5568862ed0f263b54681e65c9f40c33bc33d62d3e98337e5466e29ebdea04a3a5b6c62f81c0410608c109edbca

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6k:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5t

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 7 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 15 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\ed41a69b8fbfbdee0148eba63b9c6e01_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ed41a69b8fbfbdee0148eba63b9c6e01_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:2676
    • C:\Windows\SysWOW64\drhryepemj.exe
      drhryepemj.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:2116
      • C:\Windows\SysWOW64\vzfrdagk.exe
        C:\Windows\system32\vzfrdagk.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:2944
    • C:\Windows\SysWOW64\ekypszimugxbvic.exe
      ekypszimugxbvic.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:2260
    • C:\Windows\SysWOW64\vzfrdagk.exe
      vzfrdagk.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:2736
    • C:\Windows\SysWOW64\pbricsxjvrvxr.exe
      pbricsxjvrvxr.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2796
    • 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:2756
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1508

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      512KB

      MD5

      e6c4cd746687cf149ee61101f8648752

      SHA1

      bc3861e541d4eeb70016e1df7105b89eb28dffae

      SHA256

      32d639579f315856fa904312f67af55c424317e25a780bc6e55fa9b54ecbafcf

      SHA512

      71c859ed8eedc66d170b1bcb971205b134b083aa88ea226cd7922ea00b29af1635c79e20528f913de74e44c952dfbd62afeba4ead8baf7da8c1213aa7177e28f

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

      Filesize

      512KB

      MD5

      3db124e8d002c0ea7a960f6b75af4daf

      SHA1

      5e7c85098bb98b6c1dba19f6522742ccaae1c562

      SHA256

      83cf66e148ff583115082f95ac0f77bd329afa234b1c0a04aeabc2a93a7ab297

      SHA512

      b904352c0b38d92449a88229820e4742b5e84da8460f437c6d1d30ba4e11e78de0160bd33a1e6ac77d556cffd8c4e12380b00233e875dd087db0a3643a83d120

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

      Filesize

      19KB

      MD5

      5639225d2e43f7bd2094842e149ea98f

      SHA1

      9984bded4c39b08ef4d98a8de699adc4cb28561b

      SHA256

      b37ac679deee628539256e8d00c14f7a372b5797ad4ec48ee8114fc64f85353e

      SHA512

      760d68bbe24c1414925f6682d60b3c586f7f5a5e1ab589e9cd01cfbf214581a2da2fe2f72b08892c1431de05e88e7ebc68ec0c0c735a3b109da414a8c278e3b6

    • C:\Windows\SysWOW64\drhryepemj.exe

      Filesize

      512KB

      MD5

      4593bcc97aa58a9c9da5c2ad60d45375

      SHA1

      884d2fcdeb2263c22f9fde3262b709185de4d8e1

      SHA256

      3c7db6fb317175dc09711fa396b7f5ca83b9e31bf9c42f3220e40778f0cee21c

      SHA512

      585704d68bfbafce116ea67df29de774b7509dd5969a807c1067d11e4faf4194d1082f7f761fadc163631fc01a193d6a5e8a0e25f329f0fe1e95238793d5299b

    • C:\Windows\SysWOW64\ekypszimugxbvic.exe

      Filesize

      512KB

      MD5

      73c8e2a4d1b0e44e7aa860ddc3dd522a

      SHA1

      cec4de67df17591295b3123638b619c5bcfaeaf8

      SHA256

      b99cb2c157d2c9873430545e1c8d13c263e7ddb9f9c03ace3024bdbf2720171a

      SHA512

      1d252ea8cf0e7c2e800d3b9a47ddaca1cd34c4baacd997d537a12dfb98d2b5dbd90f9954fd3a53344f3d307245f2e577e8378c850293114d043e2070d2753a7f

    • C:\Windows\SysWOW64\vzfrdagk.exe

      Filesize

      512KB

      MD5

      89c8f93333bf12fdc99c8ed9fd152fa1

      SHA1

      c8cba47c2c61fbe2cf00569ed4b1e814bf59a193

      SHA256

      40507bbaad09f25277ebce4a38673e0734616051479a22ec7670089547960c5d

      SHA512

      a0f9867f97a2713f154493d230a0655657ae1ce71ad5ae86212379746eebb1bd2ea5dc9092c68d3f9efc8744bbc683119d5da2caf868d283f7bd0d9cd09e9f93

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\pbricsxjvrvxr.exe

      Filesize

      512KB

      MD5

      b0bdef70fa15458765ca596b308d4821

      SHA1

      44d402efdac7e7be0ea99f70e1fa66ffb84d9757

      SHA256

      d38ebb4bbd9711f818a685a5c2cd4882bcfe963ab6033ce8aa3d245e9e77e518

      SHA512

      1b95cea1b23ec636c6ae483ddbee351d7bb202496bceb545a5e0a67816f27b303c83d05efe0c9b1f33e1fec0d2746dce7d766b545a780c1a5e142619428169d8

    • memory/2676-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2756-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2756-90-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB