Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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:2676
    • \??\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:2516
    • 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:4400
      • \??\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:3744
        • \??\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:4832
          • \??\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:4652
            • \??\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:4356
            • 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:60
            • 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:3828
            • 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:3688

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 c675b8291d2c9120db2e2442caf33ea3f21bb4f636cb4843ebf7c92fd4035ddc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        explorer.exe

        • Path C:\Windows\System\explorer.exe
        • Size 206KB
        • SHA256 163eba0b3ac8385307aa46f331d324fbcf67cd98d36b0deab7a9c89b4cc58bcc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        spoolsv.exe

        • Path C:\Windows\System\spoolsv.exe
        • Size 206KB
        • SHA256 38f15abdff2c534ed6189a1329c14212891c2e7072a8cf8af2173e2a29ac0672
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svchost.exe

        • Path C:\Windows\System\svchost.exe
        • Size 206KB
        • SHA256 04c76eff899388e763836ebcf1c0fb6a038a183a573eb5204102b136ad714df7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2676-0-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/2676-47-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/3744-49-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4356-42-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4400-46-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4652-50-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4832-45-0x0000000000400000-0x000000000042F000-memory.dmp