Overview

overview

10

Static

static

5

a81b541839...18.exe

windows7-x64

10

a81b541839...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/06/2024, 05:10

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General

  • Target
    a81b54183962d320b915383292f0f750_JaffaCakes118.exe
  • Size 512KB
  • Sample240614-ftyd4szerp
  • SHA256 f73a49608e21884caf0716fdfe24f2df54c105e30906971a5ecee65da5c9e869
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
evasionpersistencespywarestealertrojan

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • 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.

    spywarestealer
  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • 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
    persistence
  • AutoIT Executable 8 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 15 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\a81b54183962d320b915383292f0f750_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a81b54183962d320b915383292f0f750_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:1152
    • C:\Windows\SysWOW64\rcbjccjowo.exe
      rcbjccjowo.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:4084
      • C:\Windows\SysWOW64\edixjzfk.exe
        C:\Windows\system32\edixjzfk.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:3368
    • C:\Windows\SysWOW64\ngopygqdgwwunad.exe
      ngopygqdgwwunad.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3776
    • C:\Windows\SysWOW64\edixjzfk.exe
      edixjzfk.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:3692
    • C:\Windows\SysWOW64\iyliqdhuvnsov.exe
      iyliqdhuvnsov.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1100
    • 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:3668

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 0cfa3044411d726d08e9efcabe016fc4495077476916726786982733c0f8c134
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        PROTTPLV.DOC.exe
        • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
        • Size 512KB
        • SHA256 2e2f66ef0a8f3894bdf8846fc5ad0d98307698fba5fbdbf9eba151e983a58a56
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        index.dat
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
        • Size 239B
        • SHA256 62d541335dd2c855f8cf2c10b799aa5b4462fb9d799282a6a6acf5a747bdbfc6
        • MD5 SHA1 SHA512
        Submit Download

        fb3b0dbfee58fac8.customDestinations-ms
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 d507bcff08f00b14f8e2353bc13b5c961d7bfcd2965a0498c4cae5c6145a8ed9
        • MD5 SHA1 SHA512
        Submit Download

        fb3b0dbfee58fac8.customDestinations-ms
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 2db368e1aa4316efb897e4cd4a55ef2669ecccac6bb2becccb0cc3fe946e386c
        • MD5 SHA1 SHA512
        Submit Download

        edixjzfk.exe
        • Path C:\Windows\SysWOW64\edixjzfk.exe
        • Size 512KB
        • SHA256 350c020fcc96ac3153ff97551a61d7303a9b19109c1610d456a55e8678d7bcf4
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        iyliqdhuvnsov.exe
        • Path C:\Windows\SysWOW64\iyliqdhuvnsov.exe
        • Size 512KB
        • SHA256 531067e90506abbe561fcc0644bb46c03c555d62243dcaf75835013b6f1a22d1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ngopygqdgwwunad.exe
        • Path C:\Windows\SysWOW64\ngopygqdgwwunad.exe
        • Size 512KB
        • SHA256 008548db3685e1bdd320954feca031526ced02cdf88b00ac1b8775369a96ea8f
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        rcbjccjowo.exe
        • Path C:\Windows\SysWOW64\rcbjccjowo.exe
        • Size 512KB
        • SHA256 421f9bcd574a9df3862b0f44f39962d1207c9dce0f174fa5b3d72803a17e5af1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

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

        MsoIrmProtector.doc.exe
        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 512KB
        • SHA256 84ce0379359ae08745acd34c6e6042284ab5ce5c53db748ff941a8caa074e8c7
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1152-0-0x0000000000400000-0x0000000000496000-memory.dmp
        Download

        memory/3668-37-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download

        memory/3668-43-0x00007FF90F790000-0x00007FF90F7A0000-memory.dmp
        Download

        memory/3668-42-0x00007FF90F790000-0x00007FF90F7A0000-memory.dmp
        Download

        memory/3668-41-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download

        memory/3668-40-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download

        memory/3668-38-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download

        memory/3668-39-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download

        memory/3668-108-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download

        memory/3668-109-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download

        memory/3668-110-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download

        memory/3668-107-0x00007FF9117F0000-0x00007FF911800000-memory.dmp
        Download