Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    04-06-2024 00:01

General

  • Target

    930fa2cd09ec1041791fa2fba5a4ff17_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    930fa2cd09ec1041791fa2fba5a4ff17

  • SHA1

    aff48860c009c79b7121afc9a34d6e01829fa7bb

  • SHA256

    7f0b385a896f1d533717002c2b789a254f61fd2a6235e4aa989f43fe94df5b7c

  • SHA512

    bbc15cb41611adbc2bd1b2719cd927a455b274b12bed66cf822a5b9e2fb3ebe2011eb3d2128551a40d5f1473066f8b9071729d19d4dc4baf4d9b2d7c36937455

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6B:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5e

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
  • Modifies Installed Components in the registry 2 TTPs 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 5 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 4 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 AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 34 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\930fa2cd09ec1041791fa2fba5a4ff17_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\930fa2cd09ec1041791fa2fba5a4ff17_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:2796
    • C:\Windows\SysWOW64\nnwrxnurws.exe
      nnwrxnurws.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:1908
      • C:\Windows\SysWOW64\eipfwqgu.exe
        C:\Windows\system32\eipfwqgu.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:2520
    • C:\Windows\SysWOW64\rdomxpsyrnorpxc.exe
      rdomxpsyrnorpxc.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2616
    • C:\Windows\SysWOW64\eipfwqgu.exe
      eipfwqgu.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:2688
    • C:\Windows\SysWOW64\dbazeuyybampf.exe
      dbazeuyybampf.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2604
    • 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:2172
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2256
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1792

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      56B

      MD5

      d0bde0746c314a24441c935e98043c13

      SHA1

      8805eddc5e24b12a768524b16520bda9f08ba780

      SHA256

      c50c943fe3179647bd4183132fa26167b1f3cf5904dbf7ec5551739f62e70f44

      SHA512

      ad549596953415cf7e261bf1268dbec89558c42d2fa827ecafe7ddc363abaee6b3285efef01f2cdb47f0feaac22463278c330f9f67d8e4e8305ab1ebee4a23a9

    • C:\Windows\SysWOW64\rdomxpsyrnorpxc.exe

      Filesize

      512KB

      MD5

      853695944c1cc70dd1562fb788782a08

      SHA1

      1671d11d43dd9649496d0852abb94f18418f323b

      SHA256

      f7da15e88b43b7b51f0cb1c83b3952a270634ad9a958d5bac44de967ac588b9e

      SHA512

      4e4810e9a7c5eeb29ce4a388796c5cb333458c39a67ba94388e9d91e21c5138869cf3b1611123c363faa50dbd3936ef2eb609f720adae93f8346f57ec4e7fda3

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\dbazeuyybampf.exe

      Filesize

      512KB

      MD5

      aaae49d085738add5bee8d49a15e445a

      SHA1

      133cd3d3045b1cb8409a15c375ec1b0dd3811f00

      SHA256

      2dd036325ef8352c763eb3154d1e598af055435d6fe337657d7ff2865383c1b0

      SHA512

      069500b5262d090b6e348e014b55ab4204603d240469b943713612802cd4b8f7368d64db03cd506b82edf1d96e10ee2a548770958fa3fc81bbebac9ce675758c

    • \Windows\SysWOW64\eipfwqgu.exe

      Filesize

      512KB

      MD5

      62c1a3e618734c99d8d95b091ef29e15

      SHA1

      8146ac425ba3a34cca76251f100a1e0364e44831

      SHA256

      7bb7c457a3b24c6b71730d85b1221dada3b0d6b766d240c0cd7ab761e5ef89fb

      SHA512

      77dc1a728bfa2f1e4198e565d625bdf25e2363fa95c96da91c81e23d4eda6a7609b249f5e5bf453ed9c1172ea2004d82b52cd05e01461bfe5d29f5621e97644f

    • \Windows\SysWOW64\nnwrxnurws.exe

      Filesize

      512KB

      MD5

      91be204c4fb79fa6522b01ea6f228354

      SHA1

      b9e66bf329c5aaf074cf802f02343eba29d1ffa1

      SHA256

      486e23514a14be94ab5260ce6a2607900709401e6c5f58f93dfec206b7d6ff1f

      SHA512

      f131996c09d0b00810a4180c065f44969d2fe8dc433ebfc62e124618d6c74519d0f19441068e9ac728ccdb57a228dcd5855f367fa672cf6c573ff2685dfad8a5

    • memory/1792-78-0x0000000003BA0000-0x0000000003BB0000-memory.dmp

      Filesize

      64KB

    • memory/2172-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2796-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB