Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    25/04/2026, 03:05

General

  • Target
    2026-04-25_b6df13aeaf8595a97872555a95a13768_elex_stop_yuner.exe
  • Size 512KB
  • Sample260425-dlln8sdy21
  • SHA256 b8e10ca4de61e5e8939cf3fa67a9f612829fe854987377b5fa1197b259ff8998
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Sohanad, Svich

    Sohanad is a worm written in C++.

  • Detects Sohanad worm 10 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
  • 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 11 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 11 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 9 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-25_b6df13aeaf8595a97872555a95a13768_elex_stop_yuner.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-25_b6df13aeaf8595a97872555a95a13768_elex_stop_yuner.exe"
    1⤵
    • 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:3684
    • C:\Windows\SysWOW64\wenhrinsjo.exe
      wenhrinsjo.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:3284
      • C:\Windows\SysWOW64\mqbpiubf.exe
        C:\Windows\system32\mqbpiubf.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:428
    • C:\Windows\SysWOW64\sxixvyykgkbmpce.exe
      sxixvyykgkbmpce.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:2996
    • C:\Windows\SysWOW64\mqbpiubf.exe
      mqbpiubf.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:2712
    • C:\Windows\SysWOW64\nqhgnkqcvwxqd.exe
      nqhgnkqcvwxqd.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4012
    • 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:844

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 512KB
        • SHA256 61c45f40a01edcaad14b523841a7bd7809ceafa7c7241dadb402bcf5dd6effb3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UseFormat.doc.exe

        • Path C:\Program Files\UseFormat.doc.exe
        • Size 512KB
        • SHA256 7eff91b4aec4aeab5bb43c2346c27692544fd397491976b1055a1dad8eb7c354
        • MD5 SHA1 SHA512 SSDEEP TLSH

        iso690.xsl

        • Path C:\Users\Admin\AppData\Local\Temp\TCDB611.tmp\iso690.xsl
        • Size 263KB
        • SHA256 3f925e0cc1542f09de1f99060899eafb0042bb9682507c907173c392115a44b5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        index.dat

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
        • Size 285B
        • SHA256 930b8972a96a62c8bf3a041dfb53cd1b61c37a4f55ba3d3516bc7b3b68fc4b81
        • MD5 SHA1 SHA512 TLSH

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 ad3f906d475b65c073e44c19031528f1cf1cc9c8f975a27e3c834d6b3f168e67
        • MD5 SHA1 SHA512 TLSH

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 2KB
        • SHA256 52bc6296b5347f969e2c23272ac2c721043020992aa173bd40c33de2e1065673
        • MD5 SHA1 SHA512 TLSH

        PopLimit.doc.exe

        • Path C:\Users\Admin\Documents\PopLimit.doc.exe
        • Size 512KB
        • SHA256 c98f0635a7755fb07a96b73cf010afcc602f6bdb03ccfa3896ea34c6c9de9545
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mqbpiubf.exe

        • Path C:\Windows\SysWOW64\mqbpiubf.exe
        • Size 512KB
        • SHA256 83bf0e47aae6b43aaf39d3b0368a02eca0590f45bf2cd436ea5537ebaf0be8fe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nqhgnkqcvwxqd.exe

        • Path C:\Windows\SysWOW64\nqhgnkqcvwxqd.exe
        • Size 512KB
        • SHA256 af1634f54def3fbaa17ff24fba3ad1c6c488f7ea10eaea479ff6a3bbb4595e67
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sxixvyykgkbmpce.exe

        • Path C:\Windows\SysWOW64\sxixvyykgkbmpce.exe
        • Size 512KB
        • SHA256 ef7a0b8bfadcd57a070ee11589b7773a360ec2eb549454a9d0ac51926627f401
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wenhrinsjo.exe

        • Path C:\Windows\SysWOW64\wenhrinsjo.exe
        • Size 512KB
        • SHA256 5c30ef11a3383a434562b835c7818df587f795fe0f3dae91cdc636f9c4bb2698
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mydoc.rtf

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

        PROTTPLV.DOC.exe

        • Path \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
        • Size 512KB
        • SHA256 8e4667ba9f8df1c50770ecda746f8f2718c589f9c4b284509feb7e1fef09bdef
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 512KB
        • SHA256 a38d0dfa5c8ed9b403acc83a024743ec57b86cdc35b9409e3d64b0d7d9a39635
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 512KB
        • SHA256 bc83210b6191828e2dbad1c57dd817a8060cdc3a4096e6a8618f73d91b85f5ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/428-564-0x00000000038E0000-0x00000000039BA000-memory.dmp

        memory/428-85-0x00000000038E0000-0x00000000039BA000-memory.dmp

        memory/844-514-0x0000021DBF1B0000-0x0000021DBF21F000-memory.dmp

        memory/844-606-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-612-0x0000021DB6D30000-0x0000021DB6E62000-memory.dmp

        memory/844-611-0x0000021DC0810000-0x0000021DC0819000-memory.dmp

        memory/844-610-0x0000021DBF1B0000-0x0000021DBF21F000-memory.dmp

        memory/844-608-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-84-0x0000021DC0810000-0x0000021DC0819000-memory.dmp

        memory/844-43-0x00007FFBBBF90000-0x00007FFBBBFA0000-memory.dmp

        memory/844-83-0x0000021DBF1B0000-0x0000021DBF21F000-memory.dmp

        memory/844-40-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-39-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-37-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-38-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-609-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-36-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-44-0x00007FFBBBF90000-0x00007FFBBBFA0000-memory.dmp

        memory/844-607-0x00007FFBBE1B0000-0x00007FFBBE1C0000-memory.dmp

        memory/844-601-0x0000021DBF1B0000-0x0000021DBF21F000-memory.dmp

        memory/2712-563-0x0000000002870000-0x000000000294A000-memory.dmp

        memory/2712-81-0x0000000002870000-0x000000000294A000-memory.dmp

        memory/2996-80-0x00000000034F0000-0x00000000035CA000-memory.dmp

        memory/3284-79-0x0000000002C90000-0x0000000002D6A000-memory.dmp

        memory/3684-35-0x0000000003D80000-0x0000000003E5A000-memory.dmp

        memory/3684-0-0x0000000000400000-0x0000000000496000-memory.dmp

        memory/4012-82-0x0000000003440000-0x000000000351A000-memory.dmp