Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/04/2026, 13:59

General

  • Target
    2026-04-17_5c81c558cf8c82dcb91c03b34abe1dc7_elex_stop_yuner.exe
  • Size 514KB
  • Sample260417-ragg2aa17w
  • SHA256 133ce56459c69089791ff32e9738e7225fde2f71d87f54f0b24390dc28e3de43
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Sohanad, Svich

    Sohanad is a worm written in C++.

  • Detects Sohanad worm 9 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visibility 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 3 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 13 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).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-17_5c81c558cf8c82dcb91c03b34abe1dc7_elex_stop_yuner.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-17_5c81c558cf8c82dcb91c03b34abe1dc7_elex_stop_yuner.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Windows\SysWOW64\tfjpmmgkrz.exe
      tfjpmmgkrz.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visibility 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
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3908
      • C:\Windows\SysWOW64\bxrrqoiw.exe
        C:\Windows\system32\bxrrqoiw.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3092
    • C:\Windows\SysWOW64\cuedbcwvfpqacdh.exe
      cuedbcwvfpqacdh.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2052
    • C:\Windows\SysWOW64\bxrrqoiw.exe
      bxrrqoiw.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1172
    • C:\Windows\SysWOW64\biunatboyzxds.exe
      biunatboyzxds.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3732
    • 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:724

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        PROTTPLN.DOC.exe

        • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe
        • Size 514KB
        • SHA256 98f58b2cf229f95c855ea0d7412663bedd9d2db275a19142eabd4a0c2a80995b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        PROTTPLV.DOC.exe

        • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
        • Size 514KB
        • SHA256 d893dc92aac9c8b34186e64fed38db413ad510156279f64b848132d5f25479fd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        index.dat

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
        • Size 351B
        • SHA256 fdf7eb03f125dac602f35b1fb0059ec3aa3766edcf28e9a7d1caefc85083d64a
        • MD5 SHA1 SHA512 TLSH

        TM02851218[[fn=gb]].xsl

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\LiveContent\16\Managed\Word Document Bibliography Styles\TM02851218[[fn=gb]].xsl
        • Size 262KB
        • SHA256 6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97
        • MD5 SHA1 SHA512 SSDEEP TLSH

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 dcf404ca47a4c51e5370ddac1e06fc98e01fb13d953cc2d8246c92bc87a4dc43
        • MD5 SHA1 SHA512 TLSH

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 fbe4bd3c48c596ce6f4e59534cc5d41cde30e3ddba3d83ab646109beccda0537
        • MD5 SHA1 SHA512 TLSH

        EnableGet.doc.exe

        • Path C:\Users\Admin\AppData\Roaming\UpdateEdit\EnableGet.doc.exe
        • Size 514KB
        • SHA256 5935189d899e65d7a6efe45c419445840ba66c6a023170546c4a06938085ba2d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        biunatboyzxds.exe

        • Path C:\Windows\SysWOW64\biunatboyzxds.exe
        • Size 514KB
        • SHA256 521dba427203924040dccc20b58957b8fe8bb8963b07c6525ea7432354710170
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bxrrqoiw.exe

        • Path C:\Windows\SysWOW64\bxrrqoiw.exe
        • Size 514KB
        • SHA256 bc14e890df74d8d7cf8bb2dcb7aa7d0163d43dd26c9eb049b5acc766938d2878
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cuedbcwvfpqacdh.exe

        • Path C:\Windows\SysWOW64\cuedbcwvfpqacdh.exe
        • Size 514KB
        • SHA256 e08350b2b9def912f09feeb0c44e01a64407b087a7ffe6b7931e0a5ebe2587cf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tfjpmmgkrz.exe

        • Path C:\Windows\SysWOW64\tfjpmmgkrz.exe
        • Size 514KB
        • SHA256 5203f75feaa54748a91e8b1e9761dc688fc543d26bb74369ba9645aeaf5f1d0a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mydoc.rtf

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

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 514KB
        • SHA256 9582b2253ba9898ba5ef9b9bda94cf57ef892c2e09d17e13007a1fb914664cb2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 514KB
        • SHA256 c13530b09af2478f2ce491d02cb3b82ea896803771afe15b67867ff414322079
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/724-96-0x0000010E86750000-0x0000010E86E8F000-memory.dmp

        memory/724-549-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/724-41-0x00007FFF7D730000-0x00007FFF7D740000-memory.dmp

        memory/724-39-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/724-38-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/724-35-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/724-43-0x0000010E467B0000-0x0000010E467C0000-memory.dmp

        memory/724-37-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/724-44-0x00007FFF7D730000-0x00007FFF7D740000-memory.dmp

        memory/724-36-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/724-553-0x0000010E86750000-0x0000010E86E8F000-memory.dmp

        memory/724-550-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/724-552-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/724-551-0x00007FFF7F790000-0x00007FFF7F7A0000-memory.dmp

        memory/5048-0-0x0000000000400000-0x0000000000496000-memory.dmp