Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 13:56

General

  • Target

    a0e805726f42e9e3cce0fc006f91ef4a_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    a0e805726f42e9e3cce0fc006f91ef4a

  • SHA1

    a8393f2417dc6399a022456a9a7ca2046f38f6f9

  • SHA256

    027f582e70cd76f128f563b272488aab93e7af086601502f8cde75dc0f97aa91

  • SHA512

    949c3dbac0d0903f7af98475dfb28f4144f5ece246f8d36f97baff907f240c905ff3840c21d7932c1cf5917865fa306ac95b020e623521f2756ced868a74a161

  • 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 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 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\a0e805726f42e9e3cce0fc006f91ef4a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a0e805726f42e9e3cce0fc006f91ef4a_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:1796
    • C:\Windows\SysWOW64\clzlmpduws.exe
      clzlmpduws.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:2088
      • C:\Windows\SysWOW64\hwdjther.exe
        C:\Windows\system32\hwdjther.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:2552
    • C:\Windows\SysWOW64\mjxcrxmqpkfwuel.exe
      mjxcrxmqpkfwuel.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2308
    • C:\Windows\SysWOW64\hwdjther.exe
      hwdjther.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:2728
    • C:\Windows\SysWOW64\owkmxtzsqkuey.exe
      owkmxtzsqkuey.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2668
    • 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:2568
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2788

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      20KB

      MD5

      96d04536367614dd33ea963cd85e6182

      SHA1

      b1b74a894b9ea12b706ccbce91c0cc1a935ecf36

      SHA256

      da80e517041979f38c31b6f25c650420755ed686647e876f6034529ac44c7741

      SHA512

      e9d3cb26c240bd3ff8ef93b1df7d0fe0bf010d507a111186d1cdb086f78c08bdd047d93ea81dc4f9c104661b6604ed3bee0940d072f58fbe72c0f44e2b2ed946

    • C:\Windows\SysWOW64\mjxcrxmqpkfwuel.exe

      Filesize

      512KB

      MD5

      35adeda22987b1e865f93619dcdfe3b9

      SHA1

      51955ab568e23a2e1d72e9fd4e5d30cb560b42f1

      SHA256

      384732967b9d30c9de9681a05825d6c9909a7a2108a083238c1e6b0a9897b00a

      SHA512

      e6d75ac8e1185aa2e8e552397941c8e5624daa1558e9f7579d5115c3b0b30491b3446bd84e9e7d94044e9d2944dc26d56842c2af2bc0780535291cf2aa0f4936

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\clzlmpduws.exe

      Filesize

      512KB

      MD5

      c90289c458e6af06185d074a96980f24

      SHA1

      e0749b1baa035f6f630f4ab61ff5d1234297fac8

      SHA256

      f04aa08ea60b44262fee1b06f38b58b714ab05a407b3fdaf974fe750bea526a4

      SHA512

      1d843e72e1307bb8e9b7e5d2b503534f5048b19847810b2886642015c4bd2a75a015f4db9036bc7ae72c953916c5a6632f114009b5aeb6185d4cfdc769fc4463

    • \Windows\SysWOW64\hwdjther.exe

      Filesize

      512KB

      MD5

      55d4c3ede8c65f481baba42a387ee433

      SHA1

      c8b12fa4cc9ca7ad60f81aa0348ba6967e5dfe7c

      SHA256

      68d919522fa3aad4bc3333f4fc0460620ec5e7f1220a55abd3cc6bfe4c5d9937

      SHA512

      c435a2588f98f5b0f874919250d54701c5e4dfb3a45c29a920f80905402f706b949d07ea4461d82985dd84959aa7ddc5e8c2a810b0003d26d33b3e048b18488b

    • \Windows\SysWOW64\owkmxtzsqkuey.exe

      Filesize

      512KB

      MD5

      9ad26dcac47e641037641dffc1bb624d

      SHA1

      a99437b505c95250073fdaa5c4befbb3465d6d7f

      SHA256

      661db7b3c9933a86da18d467838eb8019a51005a752bbf4e509c20ea2794b7c5

      SHA512

      42a3b60112473e2fcf61e4023ca3c5ebf1b8554d5f88b71258187b8e5072553afd6cbf6363808f4d269e6fd7fea8ff42c72cfbbb7912e2a3a1f6d662f254b9cd

    • memory/1796-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2568-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2568-97-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB