arkei | b34170c638c226b607143d245b15d215fb9ba7bcf05db48967b158841509e250

Windows Service

T1543.003

Disable or Modify Tools

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	7a6beb3d6b5da7f3c02504f7bac4699b.exe

Turns off Windows Defender SpyNet reporting 2 TTPs
evasion

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

Modify Registry

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe = "0"	7a6beb3d6b5da7f3c02504f7bac4699b.exe

Nirsoft 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\41975551-e827-42e0-93ed-00e02d22bc4d\AdvancedRun.exe	Nirsoft

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:

7a6beb3d6b5da7f3c02504f7bac4699b.exeAdvancedRun.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	AdvancedRun.exe

Executes dropped EXE 2 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe

pid process

3756 AdvancedRun.exe
4780 AdvancedRun.exe

Windows security modification 2 TTPs 10 IoCs

evasion trojan

Disable or Modify Tools

Modify Registry

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe = "0"	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	7a6beb3d6b5da7f3c02504f7bac4699b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exe

description pid process target process

PID 1604 set thread context of 3264 1604 7a6beb3d6b5da7f3c02504f7bac4699b.exe 7a6beb3d6b5da7f3c02504f7bac4699b.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 1604 set thread context of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exepowershell.exe

pid	process
3756	AdvancedRun.exe
3756	AdvancedRun.exe
3756	AdvancedRun.exe
3756	AdvancedRun.exe
4780	AdvancedRun.exe
4780	AdvancedRun.exe
4780	AdvancedRun.exe
4780	AdvancedRun.exe
1628	powershell.exe
1628	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe7a6beb3d6b5da7f3c02504f7bac4699b.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3756	AdvancedRun.exe
Token: SeImpersonatePrivilege	3756	AdvancedRun.exe
Token: SeDebugPrivilege	4780	AdvancedRun.exe
Token: SeImpersonatePrivilege	4780	AdvancedRun.exe
Token: SeDebugPrivilege	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Token: SeDebugPrivilege	1628	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exeAdvancedRun.exe

description	pid	process	target process
PID 1604 wrote to memory of 3756	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	AdvancedRun.exe
PID 1604 wrote to memory of 3756	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	AdvancedRun.exe
PID 1604 wrote to memory of 3756	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	AdvancedRun.exe
PID 3756 wrote to memory of 4780	3756	AdvancedRun.exe	AdvancedRun.exe
PID 3756 wrote to memory of 4780	3756	AdvancedRun.exe	AdvancedRun.exe
PID 3756 wrote to memory of 4780	3756	AdvancedRun.exe	AdvancedRun.exe
PID 1604 wrote to memory of 1628	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	powershell.exe
PID 1604 wrote to memory of 1628	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	powershell.exe
PID 1604 wrote to memory of 1628	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	powershell.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1604 wrote to memory of 3264	1604	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe

C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe
"C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1604

C:\Users\Admin\AppData\Local\Temp\41975551-e827-42e0-93ed-00e02d22bc4d\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\41975551-e827-42e0-93ed-00e02d22bc4d\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\41975551-e827-42e0-93ed-00e02d22bc4d\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3756

C:\Users\Admin\AppData\Local\Temp\41975551-e827-42e0-93ed-00e02d22bc4d\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\41975551-e827-42e0-93ed-00e02d22bc4d\AdvancedRun.exe" /SpecialRun 4101d8 3756
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4780

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1628

C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe
"C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe"
2⤵
PID:3264

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

4

Impair Defenses

4

T1562

Disable or Modify Tools

4

Credential Access

Discovery

Query Registry