Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 02:52

General

  • Target
    741c69cb9dd55dd03baad28205229302_JaffaCakes118.exe
  • Size 512KB
  • Sample240526-dc2zvsda99
  • SHA256 1a4a8120a43923dadc67d277e315ac09ae1928830bf5a77d70374bb5b07a25a0
  • MD5 SHA1 SHA512 SSDEEP

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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 10 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 21 IoCs
  • Drops file in Windows directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\741c69cb9dd55dd03baad28205229302_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\741c69cb9dd55dd03baad28205229302_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • 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:2748
    • C:\Windows\SysWOW64\fihpbfcfyc.exe
      fihpbfcfyc.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
      • 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:2232
      • C:\Windows\SysWOW64\pvyludfu.exe
        C:\Windows\system32\pvyludfu.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1748
    • C:\Windows\SysWOW64\dsmjhlrjwmtadot.exe
      dsmjhlrjwmtadot.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1704
    • C:\Windows\SysWOW64\pvyludfu.exe
      pvyludfu.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4788
    • C:\Windows\SysWOW64\jyjhzrymnxwbt.exe
      jyjhzrymnxwbt.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4644
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:1524

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        PROTTPLN.DOC.exe

        • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe
        • Size 512KB
        • SHA256 f0773482d7fae7b8f6f76ce398a6277e089a148479b02fe7f27079e57fe9384f
        • MD5 SHA1 SHA512 SSDEEP

        PROTTPLV.DOC.exe

        • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
        • Size 512KB
        • SHA256 25ce15e8e93f40ef2d30235310e337130b087020fe15055bf3884119b6b1ef94
        • MD5 SHA1 SHA512 SSDEEP

        SyncReceive.doc.exe

        • Path C:\Program Files\SyncReceive.doc.exe
        • Size 512KB
        • SHA256 841c82f180a685d79c38610429faf3fa5dd9bf8e2fab9471c0e5c8e1add77235
        • MD5 SHA1 SHA512 SSDEEP

        gb.xsl

        • Path C:\Users\Admin\AppData\Local\Temp\TCD93AB.tmp\gb.xsl
        • Size 262KB
        • SHA256 6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97
        • MD5 SHA1 SHA512 SSDEEP

        index.dat

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
        • Size 239B
        • SHA256 9def83813762ad0c5f6fdd68707d43b7ccd26633b2123254272180d76bc3faaf
        • MD5 SHA1 SHA512

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 87f30b1bc18cfdd0e546eda3e967597f14082ca277a379e8fbe4a1a85f3a7e1a
        • MD5 SHA1 SHA512

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 a42ddbff3eb71331625c66e55ff5c1431f724df98fc2c8b6aac96c0f82f032af
        • MD5 SHA1 SHA512

        dsmjhlrjwmtadot.exe

        • Path C:\Windows\SysWOW64\dsmjhlrjwmtadot.exe
        • Size 512KB
        • SHA256 ab254fc5ac90bafa03be1d87aa75c73463eeaf42e5bc56a67cc6dcd388e51737
        • MD5 SHA1 SHA512 SSDEEP

        fihpbfcfyc.exe

        • Path C:\Windows\SysWOW64\fihpbfcfyc.exe
        • Size 512KB
        • SHA256 2d7b81c61047c83524d8d1f0c1a19a73185ccb7991454ed8ea81b581589040eb
        • MD5 SHA1 SHA512 SSDEEP

        jyjhzrymnxwbt.exe

        • Path C:\Windows\SysWOW64\jyjhzrymnxwbt.exe
        • Size 512KB
        • SHA256 d60393b23a05dae9d1e6e05c8cca662b26bb4af918ffebf3c46a8a7ca00e443a
        • MD5 SHA1 SHA512 SSDEEP

        pvyludfu.exe

        • Path C:\Windows\SysWOW64\pvyludfu.exe
        • Size 512KB
        • SHA256 e38a8147fa624a18c581ef19f1728da2cb91289eba27d732d4f34b60c4b29b70
        • MD5 SHA1 SHA512 SSDEEP

        mydoc.rtf

        • Path C:\Windows\mydoc.rtf
        • Size 223B
        • SHA256 85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2
        • MD5 SHA1 SHA512

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 512KB
        • SHA256 f3af7791ec68a70d9e23c8dffd8d7c56204f25154ad3a5239eac96a0f5c02a32
        • MD5 SHA1 SHA512 SSDEEP

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 512KB
        • SHA256 32e2338e3bdbe490898b05c7f5fe66604abbfc88131f742dd78d26e6f1705545
        • MD5 SHA1 SHA512 SSDEEP

        memory/1524-38-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/1524-39-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/1524-36-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/1524-37-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/1524-35-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/1524-40-0x00007FFA6AC90000-0x00007FFA6ACA0000-memory.dmp

        memory/1524-43-0x00007FFA6AC90000-0x00007FFA6ACA0000-memory.dmp

        memory/1524-606-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/1524-605-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/1524-603-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/1524-604-0x00007FFA6D310000-0x00007FFA6D320000-memory.dmp

        memory/2748-0-0x0000000000400000-0x0000000000496000-memory.dmp