Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/08/2026, 06:37

General

  • Target
    2026-08-25_d9f3a3c903b728b51cc43044b653326f_darkgate_elex_gcleaner_glassworm_wannacry.exe
  • Size 8.3MB
  • Sample260826-hdzcksca72
  • SHA256 b056abb3d6d8eda914270ead2e94e085ab842a0f792b4924b9fe8679c5ff3063
  • 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 SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-25_d9f3a3c903b728b51cc43044b653326f_darkgate_elex_gcleaner_glassworm_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-25_d9f3a3c903b728b51cc43044b653326f_darkgate_elex_gcleaner_glassworm_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1000
    • \??\c:\users\admin\appdata\local\temp\2026-08-25_d9f3a3c903b728b51cc43044b653326f_darkgate_elex_gcleaner_glassworm_wannacry.exe 
      c:\users\admin\appdata\local\temp\2026-08-25_d9f3a3c903b728b51cc43044b653326f_darkgate_elex_gcleaner_glassworm_wannacry.exe 
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1136
    • 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:3732
      • \??\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:1092
        • \??\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:4668
          • \??\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:960
            • \??\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:3376
            • C:\Windows\SysWOW64\at.exe
              at 07:40 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              6⤵
              • System Location Discovery: System Language Discovery
              PID:5020
            • C:\Windows\SysWOW64\at.exe
              at 07:41 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              6⤵
              • System Location Discovery: System Language Discovery
              PID:3580
            • C:\Windows\SysWOW64\at.exe
              at 07:42 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              6⤵
              • System Location Discovery: System Language Discovery
              PID:5420

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        2026-08-25_d9f3a3c903b728b51cc43044b653326f_darkgate_elex_gcleaner_glassworm_wannacry.exe 

        • Path C:\Users\Admin\AppData\Local\Temp\2026-08-25_d9f3a3c903b728b51cc43044b653326f_darkgate_elex_gcleaner_glassworm_wannacry.exe 
        • Size 8.1MB
        • SHA256 6c91bfd1dd3d2c37c7fc34a097fd636bf70bfadd438357738f73c14b2448e707
        • MD5 SHA1 SHA512 SSDEEP TLSH

        icsys.icn.exe

        • Path C:\Users\Admin\AppData\Local\icsys.icn.exe
        • Size 207KB
        • SHA256 41dc93121ce4e43477b0c92c4ec2580a5a8a2dfd6bf39d425fd97cde67a0e067
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mrsys.exe

        • Path C:\Users\Admin\AppData\Roaming\mrsys.exe
        • Size 206KB
        • SHA256 f880e25d39b830e70ff9382091b5dc506033f00d032683d2abb0f97ce27ea18b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        explorer.exe

        • Path C:\Windows\System\explorer.exe
        • Size 206KB
        • SHA256 b91eb980577cc9b1a72587a9b8816b1ed24dbf7914d82d8489b2d115ff484be9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        spoolsv.exe

        • Path \??\c:\windows\system\spoolsv.exe
        • Size 206KB
        • SHA256 d0a1493f6895f21d89cc4203405a1f6d1870709d50b8b09f4cdad298a73f1036
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svchost.exe

        • Path \??\c:\windows\system\svchost.exe
        • Size 206KB
        • SHA256 c641f919b4f7bc28d9d09d4129205cb3fe8b2ea15f460d50663c1a51b63f3b37
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/960-57-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/1000-0-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/1000-54-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/1092-56-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/1136-10-0x0000000000400000-0x0000000000C69000-memory.dmp

        memory/3376-49-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/3732-53-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4668-52-0x0000000000400000-0x000000000042F000-memory.dmp