Overview

overview

10

Static

static

3

WinLock.exe

windows10-2004-x64

10

WinLock.exe

windows11-ltsc_2024-x64

8

Analysis

  • user interaction
    yes
  • max time kernel
    65s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 18:24

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General

  • Target
    WinLock.exe
  • Size 210KB
  • Sample260629-w2celscs5z
  • SHA256 80e7216787296e6fd91fdd10d7402b271bc63f1c0365d5ed0f2c54d690d5cfd2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwaredefense_evasionpersistencespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

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

    persistence
  • Adds Run key to start application 2 TTPs 10 IoCs
    persistence
  • Drops desktop.ini file(s) 4 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Hide Artifacts: Hidden Files and Directories 1 TTPs 6 IoCs
    defense_evasion
  • Checks SCSI registry key(s) 3 TTPs 46 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 29 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of FindShellTrayWindow 16 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Views/modifies file attributes 1 TTPs 12 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\WinLock.exe
    "C:\Users\Admin\AppData\Local\Temp\WinLock.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1140
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c F: & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @ZACTEAM_bot 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:5564
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Views/modifies file attributes
        PID:5336
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:996
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @ZACTEAM_bot 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:4428
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:3348
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:4976
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%systemdrive%\Users\Public\Desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @ZACTEAM_bot 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:4316
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:472
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\downloads"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @ZACTEAM_bot 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:5332
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:2732
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:3384
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\documents"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @ZACTEAM_bot 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:1936
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:5808
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:6072
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @ZACTEAM_bot 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:3376
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Views/modifies file attributes
        PID:3696
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:5232
    • C:\Windows\SYSTEM32\taskkill.exe
      taskkill.exe /im Explorer.exe /f
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:5136
  • C:\Users\Admin\AppData\Local\Temp\WinLock.exe
    "C:\Users\Admin\AppData\Local\Temp\WinLock.exe"
    1⤵
      PID:5884
    • C:\Users\Admin\AppData\Local\Temp\WinLock.exe
      "C:\Users\Admin\AppData\Local\Temp\WinLock.exe" -startup
      1⤵
        PID:3288
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:5196
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:1628
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4964
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:2980

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            prep_Activatable Class_Hermes_perf.cache
            • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
            • Size 607B
            • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            info-Locker.txt
            • Path C:\Users\Admin\Desktop\info-Locker.txt
            • Size 78B
            • SHA256 0f68f4c9a51631f49700410f8a6b009de83aa7f4a7e37b792d70bf304f54b881
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            info-Locker.txt
            • Path F:\info-Locker.txt
            • Size 78B
            • SHA256 f8a733fdc903ca4fa1547cc962859e51b31c689e4fe51014f15124bf12e2c3c7
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            memory/1140-6-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/1140-27-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/1140-5-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/1140-0-0x00007FF89E5BF000-0x00007FF89E5C0000-memory.dmp
            Download

            memory/1140-7-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/1140-1-0x0000000000560000-0x000000000059A000-memory.dmp
            Download

            memory/1140-4-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/1140-29-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/1140-28-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/1140-3-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/1140-2-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/4964-33-0x000002DA801E0000-0x000002DA802E0000-memory.dmp
            Download

            memory/4964-32-0x000002DA801E0000-0x000002DA802E0000-memory.dmp
            Download

            memory/4964-31-0x000002DA801E0000-0x000002DA802E0000-memory.dmp
            Download

            memory/4964-55-0x000002DA83DA0000-0x000002DA83DC0000-memory.dmp
            Download

            memory/4964-77-0x000002DA946C0000-0x000002DA946E0000-memory.dmp
            Download

            memory/4964-43-0x000002DA83EA0000-0x000002DA83FA0000-memory.dmp
            Download

            memory/4964-42-0x000002DA83CA0000-0x000002DA83CC0000-memory.dmp
            Download

            memory/5884-11-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/5884-10-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/5884-9-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download

            memory/5884-8-0x00007FF89E430000-0x00007FF89EDD4000-memory.dmp
            Download