arkei | b826af3338b2d2f0c6b5427ba25a47661ca142e9f331b6443255f359c44036fe

Windows Service

T1543.003

Disable or Modify Tools

Processes:

b6e95ff23f2e0793f36543b91d0d0a0a.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	b6e95ff23f2e0793f36543b91d0d0a0a.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:

b6e95ff23f2e0793f36543b91d0d0a0a.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\b6e95ff23f2e0793f36543b91d0d0a0a.exe = "0"	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	b6e95ff23f2e0793f36543b91d0d0a0a.exe

Nirsoft 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\419f21b1-2d68-4d82-8c82-8451583c203d\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:

AdvancedRun.exeb6e95ff23f2e0793f36543b91d0d0a0a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	AdvancedRun.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	b6e95ff23f2e0793f36543b91d0d0a0a.exe

Executes dropped EXE 2 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe

pid process

1548 AdvancedRun.exe
2004 AdvancedRun.exe

Windows security modification 2 TTPs 10 IoCs

evasion trojan

Disable or Modify Tools

Modify Registry

Processes:

b6e95ff23f2e0793f36543b91d0d0a0a.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\b6e95ff23f2e0793f36543b91d0d0a0a.exe = "0"	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	b6e95ff23f2e0793f36543b91d0d0a0a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b6e95ff23f2e0793f36543b91d0d0a0a.exe

description pid process target process

PID 4804 set thread context of 3152 4804 b6e95ff23f2e0793f36543b91d0d0a0a.exe b6e95ff23f2e0793f36543b91d0d0a0a.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 4804 set thread context of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exepowershell.exe

pid	process
1548	AdvancedRun.exe
1548	AdvancedRun.exe
1548	AdvancedRun.exe
1548	AdvancedRun.exe
2004	AdvancedRun.exe
2004	AdvancedRun.exe
2004	AdvancedRun.exe
2004	AdvancedRun.exe
3080	powershell.exe
3080	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exeb6e95ff23f2e0793f36543b91d0d0a0a.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1548	AdvancedRun.exe
Token: SeImpersonatePrivilege	1548	AdvancedRun.exe
Token: SeDebugPrivilege	2004	AdvancedRun.exe
Token: SeImpersonatePrivilege	2004	AdvancedRun.exe
Token: SeDebugPrivilege	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Token: SeDebugPrivilege	3080	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

b6e95ff23f2e0793f36543b91d0d0a0a.exeAdvancedRun.exe

description	pid	process	target process
PID 4804 wrote to memory of 1548	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	AdvancedRun.exe
PID 4804 wrote to memory of 1548	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	AdvancedRun.exe
PID 4804 wrote to memory of 1548	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	AdvancedRun.exe
PID 1548 wrote to memory of 2004	1548	AdvancedRun.exe	AdvancedRun.exe
PID 1548 wrote to memory of 2004	1548	AdvancedRun.exe	AdvancedRun.exe
PID 1548 wrote to memory of 2004	1548	AdvancedRun.exe	AdvancedRun.exe
PID 4804 wrote to memory of 3080	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	powershell.exe
PID 4804 wrote to memory of 3080	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	powershell.exe
PID 4804 wrote to memory of 3080	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	powershell.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 4804 wrote to memory of 3152	4804	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe

C:\Users\Admin\AppData\Local\Temp\b6e95ff23f2e0793f36543b91d0d0a0a.exe
"C:\Users\Admin\AppData\Local\Temp\b6e95ff23f2e0793f36543b91d0d0a0a.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:4804

C:\Users\Admin\AppData\Local\Temp\419f21b1-2d68-4d82-8c82-8451583c203d\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\419f21b1-2d68-4d82-8c82-8451583c203d\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\419f21b1-2d68-4d82-8c82-8451583c203d\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:1548

C:\Users\Admin\AppData\Local\Temp\419f21b1-2d68-4d82-8c82-8451583c203d\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\419f21b1-2d68-4d82-8c82-8451583c203d\AdvancedRun.exe" /SpecialRun 4101d8 1548
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2004

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\b6e95ff23f2e0793f36543b91d0d0a0a.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3080

C:\Users\Admin\AppData\Local\Temp\b6e95ff23f2e0793f36543b91d0d0a0a.exe
"C:\Users\Admin\AppData\Local\Temp\b6e95ff23f2e0793f36543b91d0d0a0a.exe"
2⤵
PID:3152

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