Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 17:36

General

  • Target
    2026-10-26_5127de58f04169d1902cafa14777edee_elex_glassworm_stop.exe
  • Size 820KB
  • Sample261027-v63a6av1ev
  • SHA256 3f1df75b89126ae552c911a5cd4c9d8b9d0b25b0217a6885d6367808bd65ae2d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • AutoIT Executable 5 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Windows directory 6 IoCs
  • Hijack Execution Flow: DLL Search Order Hijacking 1 TTPs

    Possible initial access via DLL redirection search order hijacking.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 8 IoCs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 19 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 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-26_5127de58f04169d1902cafa14777edee_elex_glassworm_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-26_5127de58f04169d1902cafa14777edee_elex_glassworm_stop.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:236
    • 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:6140
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4040
    • 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:4048
      • 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:5072
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C cacls "C:\system volume information" /e /g "Admin":f
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4228
      • C:\Windows\SysWOW64\cacls.exe
        cacls "C:\system volume information" /e /g "Admin":f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5992
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C cacls "C:\system volume information" /e /g "Admin":f
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5636
      • C:\Windows\SysWOW64\cacls.exe
        cacls "C:\system volume information" /e /g "Admin":f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5824
  • C:\Users\Admin\Desktop\system3_.exe
    C:\Users\Admin\Desktop\system3_.exe
    1⤵
    • Modifies WinLogon for persistence
    • Executes dropped EXE
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4216
    • 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:1592
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1588
    • 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:5028
      • 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:832
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C cacls "C:\system volume information" /e /g "Admin":f
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4544
      • C:\Windows\SysWOW64\cacls.exe
        cacls "C:\system volume information" /e /g "Admin":f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4872
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C cacls "C:\system volume information" /e /g "Admin":f
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Windows\SysWOW64\cacls.exe
        cacls "C:\system volume information" /e /g "Admin":f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5816
  • C:\Windows\explorer.exe
    Explorer.exe system3_.exe
    1⤵
      PID:2292
    • 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:2412
      • C:\Users\Admin\Desktop\system3_.exe
        "C:\Users\Admin\Desktop\system3_.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2644

    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 791735e52af30a1c6a750df3837784a34cfe763332e5b45acfd731ddaa159b83
          • MD5 SHA1 SHA512 TLSH

          B46811C17859FFB409CF0E904A4AA8F8

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
          • Size 529B
          • SHA256 39c727d70b8bdf5fc324233d0823555eb66ce846119609a22d1cebedbc3cf80c
          • MD5 SHA1 SHA512 TLSH

          BF49497C7114044B075F9A147F1C63F3

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\BF49497C7114044B075F9A147F1C63F3
          • Size 309B
          • SHA256 5f389eca0e5b116ed1d5ac9ab33d0d3e257316d4bd2581c9649263c03e745f46
          • MD5 SHA1 SHA512 TLSH

          8B2B9A00839EED1DFDCCC3BFC2F5DF12

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
          • Size 174B
          • SHA256 b4a209d769b9ca6116c15001b66d703c14028230f2d0e3e8906bb76d939739fd
          • MD5 SHA1 SHA512 TLSH

          B46811C17859FFB409CF0E904A4AA8F8

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
          • Size 170B
          • SHA256 f6543d81b99c2528075f31c622c56ff20306b9092ebd762c7aa5ea9493254392
          • MD5 SHA1 SHA512 TLSH

          BF49497C7114044B075F9A147F1C63F3

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\BF49497C7114044B075F9A147F1C63F3
          • Size 192B
          • SHA256 9d3d831ac18baa138d337f8ce46903a4855ddba62a74027a5fd129682504fd02
          • MD5 SHA1 SHA512 TLSH

          setting[2].htm

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\H6HGNC2Z\setting[2].htm
          • Size 178B
          • SHA256 2215b6324712a5453264d05ba2a50d3475a3aca173dfe1bbc46d711722487089
          • MD5 SHA1 SHA512 TLSH

          setting[1].htm

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WLCSD876\setting[1].htm
          • Size 173B
          • SHA256 5bd1cb20b56bb3ea06d9c3f0abe9223a38e93f3d833df496524dcdebfeb3b4ca
          • MD5 SHA1 SHA512 TLSH

          Wplugin.dll

          • Path C:\Users\Admin\AppData\Roaming\Wplugin.dll
          • Size 108KB
          • SHA256 2e9203956467c3cbdbbaf88b6450f9dece0cf3f3099fff5f32ecf5edbb5eaa90
          • MD5 SHA1 SHA512 SSDEEP 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 820KB
          • SHA256 3f1df75b89126ae552c911a5cd4c9d8b9d0b25b0217a6885d6367808bd65ae2d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/236-5-0x000000000047D000-0x000000000047E000-memory.dmp

          memory/236-0-0x0000000000400000-0x00000000004CD000-memory.dmp

          memory/236-91-0x0000000000400000-0x00000000004CD000-memory.dmp

          memory/2644-23-0x0000000000400000-0x00000000004CD000-memory.dmp

          memory/4216-92-0x0000000000400000-0x00000000004CD000-memory.dmp