9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627

General

Target

9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exe
Size

268KB
MD5

6ccdf7345c429a1d9b4bdfb2df5f9295
SHA1

dad86d461c5f6a17229414c5dedabd5657f148b8
SHA256

9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627
SHA512

40f4fa5935e9edee720a14ea5298813ce3d1fb02115f374078495f76d55f8617ba65e9134e2458b5cc269a452f9d0380adaef68230bc6f9467f3aa87652a3609
SSDEEP

6144:OvJ9gKQ0vKEP5/4D8QIPQYhp2G7Mvhwc/3LsPU3JBRQ:OvjByEPZ4AQBYzoBsPU3J3

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\35671 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\mskanlvsi.cmd"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe

Executes dropped EXE 3 IoCs

Processes:

winlogon.exewinlogon.execsrss.exe

pid process

4892 winlogon.exe
480 winlogon.exe
1512 csrss.exe

pid	process
4892	winlogon.exe
480	winlogon.exe
1512	csrss.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exewinlogon.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	winlogon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

winlogon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Winlogon = "C:\\Users\\Admin\\AppData\\Roaming\\SubFolder\\SubFolder\\winlogon.exe"	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Winlogon = "C:\\Users\\Admin\\AppData\\Roaming\\SubFolder\\SubFolder\\winlogon.exe"	winlogon.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

winlogon.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	winlogon.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	winlogon.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

winlogon.exe

description pid process target process

PID 4892 set thread context of 480 4892 winlogon.exe winlogon.exe
Drops file in Program Files directory 1 IoCs

Processes:

svchost.exe

description ioc process

File created C:\PROGRA~3\LOCALS~1\Temp\mskanlvsi.cmd svchost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

winlogon.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ winlogon.exe

description	pid	process	target process
PID 4892 set thread context of 480	4892	winlogon.exe	winlogon.exe

description	ioc	process
File created	C:\PROGRA~3\LOCALS~1\Temp\mskanlvsi.cmd	svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	winlogon.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

winlogon.execsrss.exe

pid	process
480	winlogon.exe
480	winlogon.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe
1512	csrss.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

winlogon.exe

pid process

480 winlogon.exe
480 winlogon.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

csrss.exe

description pid process

Token: SeDebugPrivilege 1512 csrss.exe

description	pid	process
Token: SeDebugPrivilege	1512	csrss.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exewinlogon.exewinlogon.exe

description	pid	process	target process
PID 3444 wrote to memory of 4892	3444	9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exe	winlogon.exe
PID 3444 wrote to memory of 4892	3444	9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exe	winlogon.exe
PID 3444 wrote to memory of 4892	3444	9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exe	winlogon.exe
PID 4892 wrote to memory of 480	4892	winlogon.exe	winlogon.exe
PID 4892 wrote to memory of 480	4892	winlogon.exe	winlogon.exe
PID 4892 wrote to memory of 480	4892	winlogon.exe	winlogon.exe
PID 4892 wrote to memory of 480	4892	winlogon.exe	winlogon.exe
PID 4892 wrote to memory of 480	4892	winlogon.exe	winlogon.exe
PID 4892 wrote to memory of 480	4892	winlogon.exe	winlogon.exe
PID 480 wrote to memory of 4440	480	winlogon.exe	svchost.exe
PID 480 wrote to memory of 4440	480	winlogon.exe	svchost.exe
PID 480 wrote to memory of 4440	480	winlogon.exe	svchost.exe
PID 4892 wrote to memory of 1512	4892	winlogon.exe	csrss.exe
PID 4892 wrote to memory of 1512	4892	winlogon.exe	csrss.exe
PID 4892 wrote to memory of 1512	4892	winlogon.exe	csrss.exe

C:\Users\Admin\AppData\Local\Temp\9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exe
"C:\Users\Admin\AppData\Local\Temp\9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3444

C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\winlogon.exe
"C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\winlogon.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4892

C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\winlogon.exe
"C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\winlogon.exe"
3⤵
- Executes dropped EXE
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:480

C:\Windows\SysWOW64\svchost.exe
C:\Windows\syswow64\svchost.exe
4⤵
- Adds policy Run key to start application
- Drops file in Program Files directory
PID:4440

C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\csrss.exe
"C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\csrss.exe" -proc 480 C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\winlogon.exe
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1512

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\csrss.exe

Filesize
268KB

MD5
6ccdf7345c429a1d9b4bdfb2df5f9295

SHA1
dad86d461c5f6a17229414c5dedabd5657f148b8

SHA256
9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627

SHA512
40f4fa5935e9edee720a14ea5298813ce3d1fb02115f374078495f76d55f8617ba65e9134e2458b5cc269a452f9d0380adaef68230bc6f9467f3aa87652a3609

Download Submit
C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\csrss.exe

Filesize
268KB

MD5
6ccdf7345c429a1d9b4bdfb2df5f9295

SHA1
dad86d461c5f6a17229414c5dedabd5657f148b8

SHA256
9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627

SHA512
40f4fa5935e9edee720a14ea5298813ce3d1fb02115f374078495f76d55f8617ba65e9134e2458b5cc269a452f9d0380adaef68230bc6f9467f3aa87652a3609

Download Submit
C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\winlogon.exe

Filesize
268KB

MD5
6ccdf7345c429a1d9b4bdfb2df5f9295

SHA1
dad86d461c5f6a17229414c5dedabd5657f148b8

SHA256
9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627

SHA512
40f4fa5935e9edee720a14ea5298813ce3d1fb02115f374078495f76d55f8617ba65e9134e2458b5cc269a452f9d0380adaef68230bc6f9467f3aa87652a3609

Download Submit
C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\winlogon.exe

Filesize
268KB

MD5
6ccdf7345c429a1d9b4bdfb2df5f9295

SHA1
dad86d461c5f6a17229414c5dedabd5657f148b8

SHA256
9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627

SHA512
40f4fa5935e9edee720a14ea5298813ce3d1fb02115f374078495f76d55f8617ba65e9134e2458b5cc269a452f9d0380adaef68230bc6f9467f3aa87652a3609

Download Submit
C:\Users\Admin\AppData\Roaming\SubFolder\SubFolder\winlogon.exe

Filesize
268KB

MD5
6ccdf7345c429a1d9b4bdfb2df5f9295

SHA1
dad86d461c5f6a17229414c5dedabd5657f148b8

SHA256
9a5e354c9dd58179d853334248d40b54822e2cf0fcef2f7db6a53ac98eae2627

SHA512
40f4fa5935e9edee720a14ea5298813ce3d1fb02115f374078495f76d55f8617ba65e9134e2458b5cc269a452f9d0380adaef68230bc6f9467f3aa87652a3609

Download Submit
memory/480-140-0x0000000000000000-mapping.dmp

Download
memory/480-141-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1512-147-0x0000000000000000-mapping.dmp

Download
memory/1512-151-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/1512-153-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/3444-137-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/3444-132-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/3444-133-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4440-144-0x0000000000000000-mapping.dmp

Download
memory/4440-145-0x0000000000010000-0x000000000001E000-memory.dmp

Filesize
56KB

Download
memory/4440-146-0x0000000000DF0000-0x0000000000DF5000-memory.dmp

Filesize
20KB

Download
memory/4440-152-0x0000000000DF0000-0x0000000000DF5000-memory.dmp

Filesize
20KB

Download
memory/4892-134-0x0000000000000000-mapping.dmp

Download
memory/4892-150-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4892-139-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4892-138-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads