c964cff8e64942ab999bce7fd91b20956bdc9b97aa3df9b41c9458a533065837

Analysis

max time kernel
150s
max time network
112s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
12/07/2026, 11:14

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General

Target
WinLock.exe
Size 209KB
Sample260712-ncakqaav81
SHA256 c964cff8e64942ab999bce7fd91b20956bdc9b97aa3df9b41c9458a533065837
MD5 54e1daceec34362d84f0c54d35b39af8
SHA1 8b762b35968bb397bab08b1a717ba1e0d46e1bd9
SHA512 4bc31a5cc13520facd3768a5fdfc588b57e732fdcd6e0f2df8c0a8cb7400c66367e91929669ca3d1e1f70080b987bb313e7f04bcd4a458c4cbc5d82c9b3d366f
SSDEEP 6144:rM8A/ehUOqx8PBmnRtQ0UuB97SCpMW90KImQijnCbxewO:rvAwUOqx8PMjQk
TLSH
T1952449981397897DD63D237ED0A1120907F56223C503F34E9EE5E4F89E2B3529B22B97
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-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsInstaller = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\" -startup"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_3 = "windowsx-c.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_5 = "_default64.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_6 = "native.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSEdgeUpdateX = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinLock.exe\""	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_1 = "AWindowsService.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_2 = "taskhost.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_4 = "System.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_7 = "ux-cryptor.exe"	WinLock.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\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\Downloads\desktop.ini	attrib.exe
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

Hide Artifacts: Hidden Files and Directories 1 TTPs 6 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
716	cmd.exe
816	cmd.exe
5744	cmd.exe
5468	cmd.exe
4864	cmd.exe
1468	cmd.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
5948	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2752	WinLock.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2752	WinLock.exe
Token: SeDebugPrivilege	5948	taskkill.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2752 wrote to memory of 5744	2752	WinLock.exe	87
PID 2752 wrote to memory of 816	2752	WinLock.exe	88
PID 2752 wrote to memory of 716	2752	WinLock.exe	89
PID 2752 wrote to memory of 1468	2752	WinLock.exe	90
PID 2752 wrote to memory of 4864	2752	WinLock.exe	91
PID 2752 wrote to memory of 5468	2752	WinLock.exe	92
PID 2752 wrote to memory of 5948	2752	WinLock.exe	93
PID 1468 wrote to memory of 4724	1468	cmd.exe	111
PID 5468 wrote to memory of 1248	5468	cmd.exe	112
PID 716 wrote to memory of 1972	716	cmd.exe	113
PID 4864 wrote to memory of 5440	4864	cmd.exe	114
PID 1468 wrote to memory of 1936	1468	cmd.exe	117
PID 816 wrote to memory of 2076	816	cmd.exe	118
PID 5744 wrote to memory of 1496	5744	cmd.exe	119
PID 5468 wrote to memory of 1640	5468	cmd.exe	120
PID 4864 wrote to memory of 4680	4864	cmd.exe	121
PID 716 wrote to memory of 4948	716	cmd.exe	122
PID 816 wrote to memory of 2108	816	cmd.exe	123
PID 5744 wrote to memory of 1452	5744	cmd.exe	124

Views/modifies file attributes 1 TTPs 12 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
1496	attrib.exe
4948	attrib.exe
1452	attrib.exe
1640	attrib.exe
1972	attrib.exe
2076	attrib.exe
2108	attrib.exe
4680	attrib.exe
4724	attrib.exe
1248	attrib.exe
5440	attrib.exe
1936	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:2752
- 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: @sseky 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:5744
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Views/modifies file attributes
    PID:1496
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:1452
- 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: @sseky 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:2076
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:2108
- 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: @sseky 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:716
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:1972
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:4948
- 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: @sseky 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:4724
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:1936
- 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: @sseky 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:4864
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:5440
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:4680
- 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: @sseky 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:5468
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Views/modifies file attributes
    PID:1248
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-Locker.txt
    3⤵
    - Views/modifies file attributes
    PID:1640
- C:\Windows\SYSTEM32\taskkill.exe
  taskkill.exe /im Explorer.exe /f
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:5948

C:\Users\Admin\AppData\Local\Temp\WinLock.exe
"C:\Users\Admin\AppData\Local\Temp\WinLock.exe" -startup
1⤵
PID:4868

C:\Users\Admin\AppData\Local\Temp\WinLock.exe
"C:\Users\Admin\AppData\Local\Temp\WinLock.exe"
1⤵
PID:3928

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

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Downloads

info-Locker.txt

Path F:\info-Locker.txt
Size 73B
SHA256 3dfd14a748ee453409faf877ca7cfa65ff0bd6de01b249e1f3484b57f7a97b59
MD5 bf5bb2e46b6b34cb883dc6868cccf2b4
SHA1 311dcfa877f5381ac3462adfdc299f9f8006ada4
SHA512 2fbe92c5c10f484349e5d1a913ba66e607f2f339025b53cd2c2c717b8fb883b58a4e312add38b87f2bbfcfcba5899ef7a58168ab5f68b412c39ce70b2650ac2d
TLSH
T1A0A022023CFC32C8220222F33C32B0A0ACBCEF0C202B3880020000E300203E82AEF828
MD5 SHA1 SHA512 TLSH

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memory/2752-4-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-11-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-3-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-0-0x00007FF9027EF000-0x00007FF9027F0000-memory.dmp

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memory/2752-5-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-9-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-10-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-12-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-1-0x00000000007D0000-0x000000000080A000-memory.dmp

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memory/2752-13-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-14-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-2-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-27-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-28-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-29-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-30-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-31-0x00007FF902660000-0x00007FF903004000-memory.dmp

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memory/2752-32-0x00007FF902660000-0x00007FF903004000-memory.dmp

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