63ce1d90d0fc261f2b5daa7d7c96c265c4a758e0e1ea4e7a915f9e0d92c332a5

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 15:51

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General

Target

Plugins/WinLock.exe
Size

891KB
MD5

cdbe850565706b891062307110fb8621
SHA1

8cd2bfddbfdb1138c7a70fdbd9891fddf26fcf35
SHA256

156f74c4a5484fa089bfbd15fbf939236883d8e6f95fc4e33d66815c404cea24
SHA512

fc506f420dfd9f902efef09ce2d01ff79e4c2e3bd156d3abf2c67f111436abbf18c01847df765d2a28efc4ad32bbd7687d08455535d8b93682ae4e341ee8d664
SSDEEP

12288:tWDhf20eRDLS+F5B9gZfEpnRJVk/kZFl7Io4cV17R5PuxNRZnWOra2L:YF2BDLSY6fcR34ybN4cV17RVSNRZn82

Score

8^/10

discovery evasion persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	WinLock.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\kvoop_t = "C:\\Windows\\kvoop.exe"	WinLock.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	WinLock.exe

Disables Task Manager via registry modification
evasion

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\kvoop_t = "C:\\Windows\\kvoop.exe"	WinLock.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\kvoop.exe	WinLock.exe
File opened for modification	C:\Windows\kvoop.exe	WinLock.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WinLock.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1804	WinLock.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1804	WinLock.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1804	WinLock.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoViewContextMenu = "1"	WinLock.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoClose = "1"	WinLock.exe

C:\Users\Admin\AppData\Local\Temp\Plugins\WinLock.exe
"C:\Users\Admin\AppData\Local\Temp\Plugins\WinLock.exe"
1⤵
- Adds policy Run key to start application
- Disables RegEdit via registry modification
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:1804

Network

MITRE ATT&CK Enterprise v15

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

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1804-0-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/1804-1-0x00000000001F0000-0x00000000002D6000-memory.dmp

Filesize
920KB

Download
memory/1804-3-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-5-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-6-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/1804-7-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-8-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads