Analysis

  • max time kernel
    150s
  • max time network
    114s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 17:22

General

  • Target
    2026-08-08_b5ca0ed781e0ba9627d8473851b88914_amadey_elex_glassworm_smoke-loader.exe
  • Size 1.1MB
  • Sample260808-vx2cha1flg
  • SHA256 580b77a22e5a9ef904cbfcb694ad9dbecb940e73b6c8afb0de84d09f79baf458
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Mofksys

    Mofksys is a worm written in VisualBasic.

  • Detects Mofksys worm 12 IoCs
  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-08_b5ca0ed781e0ba9627d8473851b88914_amadey_elex_glassworm_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-08_b5ca0ed781e0ba9627d8473851b88914_amadey_elex_glassworm_smoke-loader.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4608
    • \??\c:\users\admin\appdata\local\temp\2026-08-08_b5ca0ed781e0ba9627d8473851b88914_amadey_elex_glassworm_smoke-loader.exe 
      c:\users\admin\appdata\local\temp\2026-08-08_b5ca0ed781e0ba9627d8473851b88914_amadey_elex_glassworm_smoke-loader.exe 
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:5680
    • C:\Users\Admin\AppData\Local\icsys.icn.exe
      C:\Users\Admin\AppData\Local\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5756
      • \??\c:\windows\system\explorer.exe
        c:\windows\system\explorer.exe
        3⤵
        • Modifies WinLogon for persistence
        • Modifies visibility of hidden/system files in Explorer
        • Boot or Logon Autostart Execution: Active Setup
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3508
        • \??\c:\windows\system\spoolsv.exe
          c:\windows\system\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2404
          • \??\c:\windows\system\svchost.exe
            c:\windows\system\svchost.exe
            5⤵
            • Modifies WinLogon for persistence
            • Modifies visibility of hidden/system files in Explorer
            • Boot or Logon Autostart Execution: Active Setup
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in Windows directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1496
            • \??\c:\windows\system\spoolsv.exe
              c:\windows\system\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:3576
            • C:\Windows\SysWOW64\at.exe
              at 18:24 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              6⤵
              • System Location Discovery: System Language Discovery
              PID:4780
            • C:\Windows\SysWOW64\at.exe
              at 18:25 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              6⤵
              • System Location Discovery: System Language Discovery
              PID:4652
            • C:\Windows\SysWOW64\at.exe
              at 18:26 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              6⤵
              • System Location Discovery: System Language Discovery
              PID:1648

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        2026-08-08_b5ca0ed781e0ba9627d8473851b88914_amadey_elex_glassworm_smoke-loader.exe 

        • Path C:\Users\Admin\AppData\Local\Temp\2026-08-08_b5ca0ed781e0ba9627d8473851b88914_amadey_elex_glassworm_smoke-loader.exe 
        • Size 870KB
        • SHA256 9606a23c6e3ea1ccfc959a7f01d525693b64ad20b00392030e255ab7f960932e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        icsys.icn.exe

        • Path C:\Users\Admin\AppData\Local\icsys.icn.exe
        • Size 206KB
        • SHA256 089593b46370e1a182027e02550588d1c115a7cf108a6316b802ab54fdae7c5b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mrsys.exe

        • Path C:\Users\Admin\AppData\Roaming\mrsys.exe
        • Size 206KB
        • SHA256 0bd53f0bf353e5ce7d8388c935107405af91e2ced87513cb43430b1f5eb08365
        • MD5 SHA1 SHA512 SSDEEP TLSH

        explorer.exe

        • Path C:\Windows\System\explorer.exe
        • Size 207KB
        • SHA256 8647ee3f5b4066b4d13d0a374a0b7581f0c49a7296603e3ea45fe93b7d84baca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        spoolsv.exe

        • Path C:\Windows\System\spoolsv.exe
        • Size 206KB
        • SHA256 7d1dcad2f4d1969df0af7af282215be0f433589d8f47300a26b1015face0fc41
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svchost.exe

        • Path C:\Windows\System\svchost.exe
        • Size 206KB
        • SHA256 581a3554bcf807425d8c02987de46a0b0af4062e684c505d519dc5dceb8c1b91
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1496-55-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/2404-50-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/3508-54-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/3576-47-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4608-53-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4608-0-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/5756-51-0x0000000000400000-0x000000000042F000-memory.dmp