Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/09/2026, 18:06

General

  • Target
    2026-09-16_af7433de38d4263b8dc389099f0e0c13_elex_stop.exe
  • Size 791KB
  • Sample260916-wpthcsstc1
  • SHA256 d2ee6c424bf11c946e3d86f24fbaf1b92f7f0a87ce74fc31eea56991089159be
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 5 IoCs

    AutoIT scripts compiled to PE executables.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 4 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Modifies Internet Explorer start page 1 TTPs 4 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-16_af7433de38d4263b8dc389099f0e0c13_elex_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-16_af7433de38d4263b8dc389099f0e0c13_elex_stop.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4384
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT /delete /yes
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2060
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4900
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Users\Admin\Desktop\system3_.exe
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1772
      • C:\Windows\SysWOW64\at.exe
        AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Users\Admin\Desktop\system3_.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2712
  • C:\Windows\explorer.exe
    Explorer.exe system3_.exe
    1⤵
      PID:2000
    • C:\Users\Admin\Desktop\system3_.exe
      C:\Users\Admin\Desktop\system3_.exe
      1⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5868
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C AT /delete /yes
        2⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4864
        • C:\Windows\SysWOW64\at.exe
          AT /delete /yes
          3⤵
          • System Location Discovery: System Language Discovery
          PID:1260
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Users\Admin\Desktop\system3_.exe
        2⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5176
        • C:\Windows\SysWOW64\at.exe
          AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Users\Admin\Desktop\system3_.exe
          3⤵
          • System Location Discovery: System Language Discovery
          PID:2172
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3808
      • C:\Users\Admin\Desktop\system3_.exe
        "C:\Users\Admin\Desktop\system3_.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:4700

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          8B2B9A00839EED1DFDCCC3BFC2F5DF12

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
          • Size 1KB
          • SHA256 6f7bfa4789bd506ccf81640feec036bac7c0354084ca472f55a79ce53b9c3ade
          • MD5 SHA1 SHA512 TLSH

          B46811C17859FFB409CF0E904A4AA8F8

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
          • Size 528B
          • SHA256 d2bb091268ade68ad8121d2184d0fbce128070156304bd4de312e6fbd267409c
          • MD5 SHA1 SHA512 TLSH

          DB1D8414D7476F1600F87016F0D4E3DD

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\DB1D8414D7476F1600F87016F0D4E3DD
          • Size 308B
          • SHA256 16f760c48a00d8058b8a52b622b30cb63a37f8eec7ca2ad01bd4ac7bcfaaca8c
          • MD5 SHA1 SHA512 TLSH

          8B2B9A00839EED1DFDCCC3BFC2F5DF12

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
          • Size 174B
          • SHA256 e40c6e77bdd41a8608aeceac19815dde9db0a9b6c258166647944cd1d81ccddd
          • MD5 SHA1 SHA512 TLSH

          B46811C17859FFB409CF0E904A4AA8F8

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
          • Size 170B
          • SHA256 cb799746454e521078f8490136a73e044eac9e47f3187c6eebadc869d88ba8a1
          • MD5 SHA1 SHA512 TLSH

          DB1D8414D7476F1600F87016F0D4E3DD

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\DB1D8414D7476F1600F87016F0D4E3DD
          • Size 192B
          • SHA256 3a44e3a8a2281125af1c30fa4d04375ccfac958ea1428dbbdaecd521ccdb0465
          • MD5 SHA1 SHA512 TLSH

          setting[2].htm

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0LTBB212\setting[2].htm
          • Size 178B
          • SHA256 2215b6324712a5453264d05ba2a50d3475a3aca173dfe1bbc46d711722487089
          • MD5 SHA1 SHA512 TLSH

          setting[2].htm

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\S1NI6S3Y\setting[2].htm
          • Size 173B
          • SHA256 5bd1cb20b56bb3ea06d9c3f0abe9223a38e93f3d833df496524dcdebfeb3b4ca
          • MD5 SHA1 SHA512 TLSH

          autorun.ini

          • Path C:\Users\Admin\Desktop\autorun.ini
          • Size 102B
          • SHA256 94a1ac3d574425ec8a3cc01675e4d787373d2a190dddd4f8ba507c49ca3fd42a
          • MD5 SHA1 SHA512 TLSH

          system3_.exe

          • Path C:\Users\Admin\Desktop\system3_.exe
          • Size 791KB
          • SHA256 d2ee6c424bf11c946e3d86f24fbaf1b92f7f0a87ce74fc31eea56991089159be
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4384-0-0x0000000000400000-0x00000000004DC000-memory.dmp

          memory/4384-1-0x000000000047D000-0x000000000047E000-memory.dmp

          memory/4384-36-0x0000000000400000-0x00000000004DC000-memory.dmp

          memory/4700-10-0x0000000000400000-0x00000000004DC000-memory.dmp

          memory/5868-38-0x0000000000400000-0x00000000004DC000-memory.dmp