Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 00:14

General

  • Target

    691a70fb48009ce8f2fc3a16294625a8_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    691a70fb48009ce8f2fc3a16294625a8

  • SHA1

    a494cc28024bae48d076fc36ced18581bcd8cad0

  • SHA256

    188e634d7fc937ca9f6defaa3c517d71f99acfd934e4423231a48b4e67f55e49

  • SHA512

    210a61dc73cacb7c3c906a65bc1df8365a5e1c7f7660bbb72bb0f4abb3d40d4172d9abfcbb115d9ebb74bb820c66c065fd83eda4d98a0dd4206fb079f1c50026

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6R:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5q

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).

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 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\691a70fb48009ce8f2fc3a16294625a8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\691a70fb48009ce8f2fc3a16294625a8_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2292
    • C:\Windows\SysWOW64\ausiikfpox.exe
      ausiikfpox.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
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2520
      • C:\Windows\SysWOW64\xtmpqkxf.exe
        C:\Windows\system32\xtmpqkxf.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2560
    • C:\Windows\SysWOW64\txntkvynqroxhhd.exe
      txntkvynqroxhhd.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2600
    • C:\Windows\SysWOW64\xtmpqkxf.exe
      xtmpqkxf.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2500
    • C:\Windows\SysWOW64\szayfmdresipy.exe
      szayfmdresipy.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2720
    • 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
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2388
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1516

    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

      4e235ed21e4b19e57fce4cbf1ceb2af2

      SHA1

      01a7f708a38680f9f6b2a12e7b273c13111410ef

      SHA256

      18c785c9c4b129e5b47731fc21faab95b51b692b26c2d4fb2aa153d2d19385be

      SHA512

      728bd20d4689624632854e60a1bd0db7baf9c1cdff502af7695d79da1154ddf8b8e411cf97bd6b26c8af03df19fe96441dab1aee43d21691fb474b72e60b40ae

    • C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

      Filesize

      64B

      MD5

      93d4d86b20eb5dd9e3edd0d4f10fe038

      SHA1

      7ab90fe5f985d2831f13de746b1a3c86dda07097

      SHA256

      245bef8d24c0da5894b6986db342fd2f107b05849e8335eeed031b975b21a311

      SHA512

      240b7a647ba6e9c8e2e39536d0b5010fc6c6fc4790a0606fea0c5fe2e31b638336439e1d106f8474053ea4893c6b053281c5049af80d2bd9e11fdb16cec27805

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

      Filesize

      20KB

      MD5

      a9b562a907a5fac9a4bd6dbac5b1ee9f

      SHA1

      b347ca9370e868c095a2b48d32db0ec0ccf914e2

      SHA256

      923eafa4e51f74e97be8918f2a76949cdd1e95a76671bfe23d2a8292a18b0ef9

      SHA512

      89b1a8d785d614c2d04a3995af4ff8b1e4bea7d398afbc109ebdf1706f9a07a90acb5d25db3abc4ed96905eb8a666b97acdd5a731d975c8403f6823fb8aa0ee3

    • C:\Windows\SysWOW64\txntkvynqroxhhd.exe

      Filesize

      512KB

      MD5

      18599d5042945201551284fd092bb45d

      SHA1

      a7171d286b89887faf39bbb07af93cec95c297df

      SHA256

      34bedf46efba90cfe391547497461f4111adea9a79b014470d4081c74c59ccfd

      SHA512

      8720f65c2f18ba8b5ae910574999e4140a50c48fb9ee4c6d9ced5959ab4baadb00c7b155111ba11e1a33c81c72558f63ba955263427223880a840cde41025aa3

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\ausiikfpox.exe

      Filesize

      512KB

      MD5

      a73bf07d16ae653e033e8ac2ff8bff6c

      SHA1

      d128234e7d42a1e29688af953c32d8287a4b7f29

      SHA256

      db01635c527c251c5946ed8475edf724281b8fb8b8f12d37d90953a04ac1ea21

      SHA512

      561746174bad65d1bbe160ff492ae41b0ff6132b8d2f2a9807ce68bbaf6d5c1d3d859e8cb0dd3b7a451da344c59e7b9361329e63489810d26d745675596763f3

    • \Windows\SysWOW64\szayfmdresipy.exe

      Filesize

      512KB

      MD5

      adefb4b637bc26a6e9bf3b39096360ea

      SHA1

      1b3014fb668b51c6d43735a80da63f7e2308719d

      SHA256

      e88c9259f044a3e8ec902fc031ba384dc89b10840fda6c4da20445c087ce3fa4

      SHA512

      deb505575a9a943422aa46b163d856e933ab6b3541c7480e40a2574bc06f54d15a0922b866a774e2ba40d239d9f5734b770ec39ab5b93493a895fd4f3bf6b12a

    • \Windows\SysWOW64\xtmpqkxf.exe

      Filesize

      512KB

      MD5

      5b6e6d620582cef2d146f0968015a98d

      SHA1

      0a5c3ef1daa8d94e3000bb2e31220c2d0a669f33

      SHA256

      ad3236d89a07d89655ed1b1f62d3ffd2f2cd5ed3236638c9bf0dfb8fd8309fb4

      SHA512

      053fb89360c06c66854d1199d8c1b2440086588fe1924b86d6fa5189b09d26805314ac742d4c0f011a833231031fd22d4504fa25104a1712b234e67247933740

    • memory/2292-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2388-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2388-94-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB