3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba

General

Target

3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe
Size

508KB
MD5

70774c09cd557ec674d9ef20cafae2e8
SHA1

92db9ee475f9c2cb8bb4f0db21bdc903372600c3
SHA256

3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba
SHA512

281a6a04e8097c4106d576fd6888da3919132ce9c0a080f0a4666f95b0ca6d37f27f39d214a2b5187a2d6ccaac8455545f2f800397bd53312d3d8b47afbc7020

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

llwinsc.exe

pid process

2412 llwinsc.exe

pid	process
2412	llwinsc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe

Drops startup file 2 IoCs

Processes:

3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llwinsc.exe	3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llwinsc.exe	3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

llwinsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Default Settings = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\llwinsc.exe -boot"	llwinsc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exellwinsc.exe

description	pid	process
Token: SeDebugPrivilege	4564	3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe
Token: SeDebugPrivilege	2412	llwinsc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exeexplorer.exe

description	pid	process	target process
PID 4564 wrote to memory of 204	4564	3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe	explorer.exe
PID 4564 wrote to memory of 204	4564	3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe	explorer.exe
PID 4564 wrote to memory of 204	4564	3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe	explorer.exe
PID 4568 wrote to memory of 2412	4568	explorer.exe	llwinsc.exe
PID 4568 wrote to memory of 2412	4568	explorer.exe	llwinsc.exe
PID 4568 wrote to memory of 2412	4568	explorer.exe	llwinsc.exe

C:\Users\Admin\AppData\Local\Temp\3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe
"C:\Users\Admin\AppData\Local\Temp\3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4564

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\System32\explorer.exe" /c select, C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llwinsc.exe
2⤵
PID:204

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:4568

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llwinsc.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llwinsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2412

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llwinsc.exe
Filesize
508KB

MD5
70774c09cd557ec674d9ef20cafae2e8

SHA1
92db9ee475f9c2cb8bb4f0db21bdc903372600c3

SHA256
3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba

SHA512
281a6a04e8097c4106d576fd6888da3919132ce9c0a080f0a4666f95b0ca6d37f27f39d214a2b5187a2d6ccaac8455545f2f800397bd53312d3d8b47afbc7020

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llwinsc.exe
Filesize
508KB

MD5
70774c09cd557ec674d9ef20cafae2e8

SHA1
92db9ee475f9c2cb8bb4f0db21bdc903372600c3

SHA256
3e66b276204a34135abfd32954a8d81cd068b5661c6f5ac12141dde45fd773ba

SHA512
281a6a04e8097c4106d576fd6888da3919132ce9c0a080f0a4666f95b0ca6d37f27f39d214a2b5187a2d6ccaac8455545f2f800397bd53312d3d8b47afbc7020

Download Submit
memory/204-132-0x0000000000000000-mapping.dmp

Download
memory/2412-135-0x0000000000000000-mapping.dmp

Download
memory/2412-137-0x0000000074340000-0x00000000748F1000-memory.dmp

Filesize
5.7MB

Download
memory/2412-138-0x0000000074340000-0x00000000748F1000-memory.dmp

Filesize
5.7MB

Download
memory/4564-130-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/4564-131-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/4564-133-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads