7e5fddbc42b801ec0a377fa1e563e55565fc6972ca3fd7d8fc8d28061112774e

Analysis

user interaction
yes
max time kernel
150s
max time network
153s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
25/08/2026, 12:19

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
WinLock.exe
Size 741KB
Sample260825-pg9faaysc1
SHA256 7e5fddbc42b801ec0a377fa1e563e55565fc6972ca3fd7d8fc8d28061112774e
MD5 a478a7629df3ea312ad9c21dc1272969
SHA1 a260b9ffc468fea1a9b165c9c009ba9e4841797e
SHA512 1f6d9ad81314027b3ac65b53c6211f7873110899f6bc9e982ec1c3cb666ed461219a51edcbc41990acf5baf6e496f748a07fcd2fd23eface22f5a46103441cc7
SSDEEP 12288:e8AwUOqxaP3dWyD7j5Xx8ExlgZ6MmUs3jXcyigWZKbSw5HvOSG1Uhfvj:TrdjD7DtxIPs3jNB2w5PqUF
TLSH
T152F4DF5C0A564B28D12C777AF055538406F45232A483D70BCEB4A4B0BA27787EAE5FFB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

6^/10

defense_evasion persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 10 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsInstaller = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\" -startup"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSEdgeUpdateX = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\""	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_2 = "taskhost.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_6 = "native.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_1 = "AWindowsService.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_3 = "windowsx-c.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_4 = "System.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_5 = "_default64.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_7 = "ux-cryptor.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-42486406-2033776002-1658862356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_8 = "crypt0rsx.exe"	WinLock.exe

Drops desktop.ini file(s) 4 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	attrib.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	attrib.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	attrib.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	attrib.exe

Hide Artifacts: Hidden Files and Directories 1 TTPs 6 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2792	cmd.exe
2556	cmd.exe
2264	cmd.exe
2140	cmd.exe
2272	cmd.exe
5064	cmd.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
2596	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
5044	WinLock.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5044	WinLock.exe
Token: SeDebugPrivilege	2596	taskkill.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 5064	5044	WinLock.exe	88
PID 5044 wrote to memory of 2272	5044	WinLock.exe	89
PID 5044 wrote to memory of 2140	5044	WinLock.exe	90
PID 5044 wrote to memory of 2264	5044	WinLock.exe	91
PID 5044 wrote to memory of 2556	5044	WinLock.exe	92
PID 5044 wrote to memory of 2792	5044	WinLock.exe	93
PID 5044 wrote to memory of 2596	5044	WinLock.exe	94
PID 2140 wrote to memory of 1480	2140	cmd.exe	110
PID 2272 wrote to memory of 460	2272	cmd.exe	111
PID 5064 wrote to memory of 116	5064	cmd.exe	112
PID 2264 wrote to memory of 1804	2264	cmd.exe	113
PID 2556 wrote to memory of 4716	2556	cmd.exe	114
PID 2792 wrote to memory of 4560	2792	cmd.exe	115
PID 2272 wrote to memory of 3764	2272	cmd.exe	116
PID 2264 wrote to memory of 5076	2264	cmd.exe	117
PID 2556 wrote to memory of 476	2556	cmd.exe	118
PID 5064 wrote to memory of 1260	5064	cmd.exe	119
PID 2792 wrote to memory of 4412	2792	cmd.exe	120
PID 2140 wrote to memory of 3900	2140	cmd.exe	121

Views/modifies file attributes 1 TTPs 12 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
116	attrib.exe
4716	attrib.exe
4560	attrib.exe
476	attrib.exe
460	attrib.exe
1804	attrib.exe
3764	attrib.exe
5076	attrib.exe
4412	attrib.exe
1260	attrib.exe
3900	attrib.exe
1480	attrib.exe

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:5044
- 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: @jt bz 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:5064
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Views/modifies file attributes
    PID:116
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:1260
- 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: @jt bz 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:460
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:3764
- 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: @jt bz 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:2140
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:1480
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:3900
- 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: @jt bz 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:1804
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:5076
- 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: @jt bz 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:2556
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:4716
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:476
- 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: @jt bz 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Views/modifies file attributes
    PID:4560
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:4412
- C:\Windows\SYSTEM32\taskkill.exe
  taskkill.exe /im Explorer.exe /f
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2596

C:\Users\Admin\AppData\Local\Temp\WinLock.exe
"C:\Users\Admin\AppData\Local\Temp\WinLock.exe"
1⤵
PID:5108

C:\Users\Admin\AppData\Local\Temp\WinLock.exe
"C:\Users\Admin\AppData\Local\Temp\WinLock.exe" -startup
1⤵
PID:4268

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

WinLock.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WinLock.exe.log
Size 1KB
SHA256 77071d2e1fdfc305512f111f44cebf7231f696c3bed3cdf5fd369b4485330d9c
MD5 b2385a5c9864a22996a735d92ea0bbea
SHA1 6102095de817c5118b2daff432176cb1a6c31e70
SHA512 9e4b1da35348bc9e047334082a56a765d8dbcbd86594818f1dddbc46fbb6279f4389333d6fd2567466f948d1f62f0af343e48474c98c0d148f4e27ae8a2a2816
TLSH
T1D531DC7022B6B1D889023F470C6D29C417BF4329B560AE0CBAA8525EDD2B0175F323F3
MD5 SHA1 SHA512 TLSH

Submit Download

info-Locker.txt

Path F:\info-Locker.txt
Size 73B
SHA256 a73275b80e3ab8d56cfe6e16377192574a7b57246e52b3b723d82a90768bf1f4
MD5 ae969579d0287701ea76a0d0b34ff137
SHA1 3b56093b157ebc57026a9bc027515378ab090827
SHA512 706898d415651e2de6683a5310e86683ac81665e30e3fc56301fcfaba90f00a85758f20244067d0c26cfd7eaf4dd8277e98323d3e86792aacaab131362b24c29
TLSH
T1BAA012442C182584204021F33932600114699D1C50332440050041922010081299A814
MD5 SHA1 SHA512 TLSH

Submit Download

memory/5044-0-0x00000000009E0000-0x0000000000AA0000-memory.dmp

Download

memory/5044-1-0x000000001B840000-0x000000001B850000-memory.dmp

Download

memory/5044-3-0x000000001B840000-0x000000001B850000-memory.dmp

Download

memory/5044-21-0x000000001B840000-0x000000001B850000-memory.dmp

Download

memory/5044-22-0x000000001B840000-0x000000001B850000-memory.dmp

Download

memory/5044-23-0x000000001D3A0000-0x000000001D50A000-memory.dmp

Download

memory/5108-4-0x00000000006D0000-0x00000000006E0000-memory.dmp

Download