Analysis
- user interaction
yes - max time kernel
20s - max time network
18s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
01/10/2026, 15:32
Static task
static1
Behavioral task
behavioral1
Sample
WinLock.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
WinLock.exe
Resource
win11ltsc2024-20260911-en
General
- Target WinLock.exe
- Size 224KB
- Sample261001-sys2eayvat
- SHA256 d84a58ecdd47369145ab33f644f845cda22bc00203c31af779b0d627b5c5b0ed
- MD5 89b9ff26d8ab023414bb9ef2236d2cf7
- SHA1 925817f330ec5d3030fe2d0507446f08dd447627
- SHA512 e751957dff6687209357024b802f5209458edf10823daaa84002f3d545972cbe32c1953bbd9185275a8c8fafb5c073b846b8e7bdada32c0e1b2156b057e7848e
- SSDEEP 6144:eP8A/ehUOqxaPBUONXyO+agWeyU2PbDddBSCpMW90KImQiXnhbIew:eEAwUOqxaPGYi5agWecvj
- TLSH T1B524395813ABC93DDA3D237ED0A112050BF56227C103E35D9EE5E4F85E2B712AB12B97
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\"" WinLock.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 13 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System3264Wow = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\" --init" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\OneDrive10293 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\" /setup" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\WINDOWS = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\" --wininit" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_1 = "AWindowsService.exe" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_4 = "System.exe" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_2 = "taskhost.exe" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_3 = "windowsx-c.exe" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_5 = "_default64.exe" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_6 = "native.exe" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_7 = "ux-cryptor.exe" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_8 = "crypt0rsx.exe" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsInstaller = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\" -startup" WinLock.exe Set value (str) \REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSEdgeUpdateX = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\"" WinLock.exe - Drops desktop.ini file(s) 12 IoCs
description ioc Process File opened for modification C:\Users\Public\Desktop\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Documents\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini attrib.exe File opened for modification C:\Users\Public\Desktop\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini attrib.exe File opened for modification C:\Users\Public\Desktop\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Documents\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Documents\desktop.ini attrib.exe - Enumerates connected drives 3 TTPs 6 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
ioc Process \??\F:\ cmd.exe \??\F:\ attrib.exe \??\F:\ attrib.exe \??\F:\ cmd.exe \??\F:\ attrib.exe \??\F:\ attrib.exe - Hide Artifacts: Hidden Files and Directories 1 TTPs 12 IoCs
pid Process 2972 cmd.exe 228 cmd.exe 4764 cmd.exe 4544 cmd.exe 796 cmd.exe 220 cmd.exe 212 cmd.exe 4260 cmd.exe 3564 cmd.exe 848 cmd.exe 784 cmd.exe 3044 cmd.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname WinLock.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain WinLock.exe - Kills process with taskkill 1 IoCs
pid Process 3328 taskkill.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4592 WinLock.exe 4592 WinLock.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4592 WinLock.exe Token: SeDebugPrivilege 3328 taskkill.exe - Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 4592 wrote to memory of 4764 4592 WinLock.exe 99 PID 4592 wrote to memory of 212 4592 WinLock.exe 100 PID 4592 wrote to memory of 228 4592 WinLock.exe 101 PID 4592 wrote to memory of 220 4592 WinLock.exe 102 PID 4592 wrote to memory of 796 4592 WinLock.exe 103 PID 4592 wrote to memory of 2972 4592 WinLock.exe 104 PID 4592 wrote to memory of 3328 4592 WinLock.exe 105 PID 220 wrote to memory of 3104 220 cmd.exe 121 PID 2972 wrote to memory of 3204 2972 cmd.exe 122 PID 220 wrote to memory of 2308 220 cmd.exe 123 PID 228 wrote to memory of 516 228 cmd.exe 124 PID 796 wrote to memory of 3192 796 cmd.exe 125 PID 4764 wrote to memory of 996 4764 cmd.exe 126 PID 212 wrote to memory of 1556 212 cmd.exe 127 PID 2972 wrote to memory of 1828 2972 cmd.exe 128 PID 228 wrote to memory of 2976 228 cmd.exe 129 PID 796 wrote to memory of 5076 796 cmd.exe 130 PID 4764 wrote to memory of 3520 4764 cmd.exe 131 PID 212 wrote to memory of 4760 212 cmd.exe 132 PID 4592 wrote to memory of 3044 4592 WinLock.exe 142 PID 4592 wrote to memory of 784 4592 WinLock.exe 143 PID 4592 wrote to memory of 848 4592 WinLock.exe 144 PID 4592 wrote to memory of 4260 4592 WinLock.exe 145 PID 4592 wrote to memory of 4544 4592 WinLock.exe 146 PID 4592 wrote to memory of 3564 4592 WinLock.exe 147 PID 784 wrote to memory of 4120 784 cmd.exe 154 PID 3044 wrote to memory of 4804 3044 cmd.exe 155 PID 784 wrote to memory of 4216 784 cmd.exe 156 PID 4544 wrote to memory of 2688 4544 cmd.exe 157 PID 848 wrote to memory of 4436 848 cmd.exe 158 PID 3564 wrote to memory of 3884 3564 cmd.exe 159 PID 4544 wrote to memory of 4836 4544 cmd.exe 160 PID 4260 wrote to memory of 3788 4260 cmd.exe 161 PID 3044 wrote to memory of 3696 3044 cmd.exe 162 PID 848 wrote to memory of 3140 848 cmd.exe 163 PID 4260 wrote to memory of 2776 4260 cmd.exe 164 PID 3564 wrote to memory of 116 3564 cmd.exe 165 - Views/modifies file attributes 1 TTPs 24 IoCs
pid Process 116 attrib.exe 3104 attrib.exe 1828 attrib.exe 2976 attrib.exe 3520 attrib.exe 4760 attrib.exe 4804 attrib.exe 3884 attrib.exe 4836 attrib.exe 2308 attrib.exe 3192 attrib.exe 3788 attrib.exe 3140 attrib.exe 3204 attrib.exe 516 attrib.exe 1556 attrib.exe 996 attrib.exe 4120 attrib.exe 4216 attrib.exe 4436 attrib.exe 2688 attrib.exe 5076 attrib.exe 3696 attrib.exe 2776 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\WinLock.exe"C:\Users\Admin\AppData\Local\Temp\WinLock.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4592 -
C:\Windows\SYSTEM32\cmd.execmd.exe /c F: & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @tgburner_56362 1>info-Locker.txt & attrib -h +s +r info-Locker.txt2⤵
- Enumerates connected drives
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D3⤵
- Enumerates connected drives
- Views/modifies file attributes
PID:996
-
-
C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt3⤵
- Enumerates connected drives
- Views/modifies file attributes
PID:3520
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @tgburner_56362 1>info-Locker.txt & attrib -h +s +r info-Locker.txt2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:212 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:1556
-
-
C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt3⤵
- Views/modifies file attributes
PID:4760
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%systemdrive%\Users\Public\Desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @tgburner_56362 1>info-Locker.txt & attrib -h +s +r info-Locker.txt2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:228 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:516
-
-
C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt3⤵
- Views/modifies file attributes
PID:2976
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\downloads"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @tgburner_56362 1>info-Locker.txt & attrib -h +s +r info-Locker.txt2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:220 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:3104
-
-
C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt3⤵
- Views/modifies file attributes
PID:2308
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\documents"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @tgburner_56362 1>info-Locker.txt & attrib -h +s +r info-Locker.txt2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:796 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:3192
-
-
C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt3⤵
- Views/modifies file attributes
PID:5076
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @tgburner_56362 1>info-Locker.txt & attrib -h +s +r info-Locker.txt2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D3⤵
- Views/modifies file attributes
PID:3204
-
-
C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt3⤵
- Views/modifies file attributes
PID:1828
-
-
-
C:\Windows\SYSTEM32\taskkill.exetaskkill.exe /im Explorer.exe /f2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3328
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c F: & attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini2⤵
- Enumerates connected drives
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:3044 -
C:\Windows\system32\attrib.exeattrib -h -s -r -i /D3⤵
- Enumerates connected drives
- Views/modifies file attributes
PID:4804
-
-
C:\Windows\system32\attrib.exeattrib +h +s -r desktop.ini3⤵
- Enumerates connected drives
- Views/modifies file attributes
PID:3696
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\desktop"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:784 -
C:\Windows\system32\attrib.exeattrib -h -s -r -i /D3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:4120
-
-
C:\Windows\system32\attrib.exeattrib +h +s -r desktop.ini3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:4216
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%systemdrive%\Users\Public\Desktop"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:848 -
C:\Windows\system32\attrib.exeattrib -h -s -r -i /D3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:4436
-
-
C:\Windows\system32\attrib.exeattrib +h +s -r desktop.ini3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:3140
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\downloads"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:4260 -
C:\Windows\system32\attrib.exeattrib -h -s -r -i /D3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:3788
-
-
C:\Windows\system32\attrib.exeattrib +h +s -r desktop.ini3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:2776
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\documents"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:4544 -
C:\Windows\system32\attrib.exeattrib -h -s -r -i /D3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:2688
-
-
C:\Windows\system32\attrib.exeattrib +h +s -r desktop.ini3⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:4836
-
-
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini2⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:3564 -
C:\Windows\system32\attrib.exeattrib -h -s -r -i /D3⤵
- Views/modifies file attributes
PID:3884
-
-
C:\Windows\system32\attrib.exeattrib +h +s -r desktop.ini3⤵
- Views/modifies file attributes
PID:116
-
-
-
C:\Users\Admin\AppData\Local\Temp\WinLock.exe"C:\Users\Admin\AppData\Local\Temp\WinLock.exe" --wininit1⤵PID:3652
-
C:\Users\Admin\AppData\Local\Temp\WinLock.exe"C:\Users\Admin\AppData\Local\Temp\WinLock.exe" /setup1⤵PID:3232
-
C:\Users\Admin\AppData\Local\Temp\WinLock.exe"C:\Users\Admin\AppData\Local\Temp\WinLock.exe" -startup1⤵PID:4696
-
C:\Users\Admin\AppData\Local\Temp\WinLock.exe"C:\Users\Admin\AppData\Local\Temp\WinLock.exe" --init1⤵PID:1252
-
C:\Users\Admin\AppData\Local\Temp\WinLock.exe"C:\Users\Admin\AppData\Local\Temp\WinLock.exe"1⤵PID:5092
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Modify Registry
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WinLock.exe.log
- Size 1KB
- SHA256 c897436c82fda9abf08b29fe05c42f4e59900116bbaf8bfd5b85ef3c97ab7884
- MD5 2d2a235f1b0f4b608c5910673735494b
- SHA1 23a63f6529bfdf917886ab8347092238db0423a0
- SHA512 10684245497f1a115142d49b85000075eb36f360b59a0501e2f352c9f1d767c447c6c44c53a3fb3699402a15a8017bdbd2edd72d8599fdd4772e9e7cb67f3086
- TLSH T1C031DE712372B1D889163F431C2D2AC007BF4769B660EE0C7598625ED9260175F222F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\Downloads\info-Locker.txt
- Size 82B
- SHA256 2fd6c8111c0a068e9623b8d13ff663db2335f60015d3dead170877eaa04df603
- MD5 9261489a5fb8c33c12aaa063b4a7c8a5
- SHA1 bde7d94c1118bcdf0ade9e97201e4777f13047c3
- SHA512 07180b8188caa7cb82991070e750af6c4bf026945c64662fd223802d804dfdf6e373dc87a9dcf1d8e810ca2e16bd44e5710acc61d47a4f143e1aa6a85dc19155
- TLSH T16BA024033D1C334C111111F337317401747DDC1C10133443410040D700104C4D4FF530
- MD5 SHA1 SHA512 TLSH