Analysis

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

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    18/04/2026, 02:45

General

  • Target
    2026-04-18_71cf7f6c5b99d9ac0783999b0632d14b_elex_stop_yuner.exe
  • Size 514KB
  • Sample260418-c832csas5n
  • SHA256 9f5558bced035ad9fca0c8fb532b7292ffeacd11f3bf1c9820f4ce01ff74653c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Sohanad, Svich

    Sohanad is a worm written in C++.

  • Detects Sohanad worm 11 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 12 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 14 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 15 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-18_71cf7f6c5b99d9ac0783999b0632d14b_elex_stop_yuner.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-18_71cf7f6c5b99d9ac0783999b0632d14b_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:5384
    • C:\Windows\SysWOW64\dzrhvyjyop.exe
      dzrhvyjyop.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:4924
      • C:\Windows\SysWOW64\gkrlvtse.exe
        C:\Windows\system32\gkrlvtse.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:1104
    • C:\Windows\SysWOW64\xenmayijzgagsed.exe
      xenmayijzgagsed.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:4920
    • C:\Windows\SysWOW64\gkrlvtse.exe
      gkrlvtse.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:4912
    • C:\Windows\SysWOW64\weldpqzzpbvyh.exe
      weldpqzzpbvyh.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1692
    • 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:4992

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 8b3bc3f19b44ed90e87a48896eee66c4ca226293d4e6f650ef94e2eae57400ba
        • MD5 SHA1 SHA512 SSDEEP TLSH

        PROTTPLV.DOC.exe

        • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
        • Size 514KB
        • SHA256 7735e3dc2893db6c0eca03d925898991cd9aead8d49461fe0358382e3352fad7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        gb.xsl

        • Path C:\Users\Admin\AppData\Local\Temp\TCD4DC6.tmp\gb.xsl
        • Size 262KB
        • SHA256 6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97
        • MD5 SHA1 SHA512 SSDEEP TLSH

        index.dat

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
        • Size 198B
        • SHA256 7d60881312baa47d90d4104a3bb9c78a01b651c6b0d14736425413084b641f49
        • MD5 SHA1 SHA512 TLSH

        Normal.dotm

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
        • Size 18KB
        • SHA256 2cd9d9b5980567d7c1753183125ff9624e8242d16ec71def375c7e62a91fa605
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CUSTOM.DIC

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC
        • Size 16B
        • SHA256 a91a702aab9b8dd722843d3d208a21bcfa6556dfc64e2ded63975de4511eb866
        • MD5 SHA1 SHA512

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 679B
        • SHA256 6bd07f6f8cef86d86cfcab7a705cb4b33c797944c6f32cc0be6ed3acd6675a5c
        • MD5 SHA1 SHA512 TLSH

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 24B
        • SHA256 90bf6baa6f968a285f88620fbf91e1f5aa3e66e2bad50fd16f37913280ad8228
        • MD5 SHA1 SHA512

        ExportDisconnect.doc.exe

        • Path C:\Users\Admin\AppData\Roaming\OptimizeSync\ExportDisconnect.doc.exe
        • Size 514KB
        • SHA256 37d091c55bd6c7507389655d22bc1748f31df62b1dc9fab2d38700c812be42d2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RequestOut.doc.exe

        • Path C:\Users\Admin\AppData\Roaming\SuspendReceive\RequestOut.doc.exe
        • Size 514KB
        • SHA256 3f5feb71d275e049935bcc5c375a365ba4a84a8baad22ca1de1228bbd594ff17
        • MD5 SHA1 SHA512 SSDEEP TLSH

        dzrhvyjyop.exe

        • Path C:\Windows\SysWOW64\dzrhvyjyop.exe
        • Size 514KB
        • SHA256 d8b57f42d866a93b373825106adc4de9024897ca7998ef55e4f50263f7b0d278
        • MD5 SHA1 SHA512 SSDEEP TLSH

        gkrlvtse.exe

        • Path C:\Windows\SysWOW64\gkrlvtse.exe
        • Size 514KB
        • SHA256 efaf5cd905b718245b2cd6d33765b07897e7bdaed1dc7e376ba792d43c51b627
        • MD5 SHA1 SHA512 SSDEEP TLSH

        weldpqzzpbvyh.exe

        • Path C:\Windows\SysWOW64\weldpqzzpbvyh.exe
        • Size 514KB
        • SHA256 bd4d8a5ade0a9e7c59d7f1a3d6d3cb505d7fabb05fb9aaaaff456f85d44957af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        xenmayijzgagsed.exe

        • Path C:\Windows\SysWOW64\xenmayijzgagsed.exe
        • Size 514KB
        • SHA256 d0c8eb45cab0b8073ebc8cf0d1c8a06dc5ff3778719cc40af1ce3900c286fe2b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mydoc.rtf

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

        ConvertPop.doc.exe

        • Path \??\c:\Users\Admin\AppData\Roaming\UninstallConvertTo\ConvertPop.doc.exe
        • Size 514KB
        • SHA256 f47a8eecdb70fbbedad213ef0041e054eeefdf73b85e9ba6b65b0b93a8699d03
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 514KB
        • SHA256 3ec3cdc3402b56aad1b720963dd8b414a45db0941712852294d23c807973c0d3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 515KB
        • SHA256 a47e6dc6c273ac76636144f72c437f72a47b9ede76db0f9b556bf2ed9868ee12
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1104-565-0x00000000009E0000-0x0000000000A2A000-memory.dmp

        memory/1104-112-0x00000000009E0000-0x0000000000A2A000-memory.dmp

        memory/1692-110-0x0000000000EE0000-0x0000000000F2A000-memory.dmp

        memory/4912-109-0x0000000000EF0000-0x0000000000F3A000-memory.dmp

        memory/4912-566-0x0000000000EF0000-0x0000000000F3A000-memory.dmp

        memory/4920-108-0x00000000009B0000-0x00000000009FA000-memory.dmp

        memory/4924-105-0x0000000000EE0000-0x0000000000F2A000-memory.dmp

        memory/4992-38-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/4992-41-0x00007FF8BCAB0000-0x00007FF8BCAC0000-memory.dmp

        memory/4992-37-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/4992-40-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/4992-39-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/4992-42-0x00007FF8BCAB0000-0x00007FF8BCAC0000-memory.dmp

        memory/4992-36-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/4992-606-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/4992-607-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/4992-608-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/4992-605-0x00007FF8BF650000-0x00007FF8BF660000-memory.dmp

        memory/5384-0-0x0000000000400000-0x0000000000496000-memory.dmp

        memory/5384-35-0x0000000001760000-0x00000000017AA000-memory.dmp