arkei | ad2c6c8d68058c316b1f3c343b59c0c14526f4a7c84ed771b2d90f590fc3c535

Windows Service

T1543.003

Disable or Modify Tools

Processes:

ce5706f1a1dd859a8233397c2490680b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	ce5706f1a1dd859a8233397c2490680b.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:

ce5706f1a1dd859a8233397c2490680b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe = "0"	ce5706f1a1dd859a8233397c2490680b.exe

Nirsoft 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\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:

ce5706f1a1dd859a8233397c2490680b.exeAdvancedRun.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	ce5706f1a1dd859a8233397c2490680b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	AdvancedRun.exe

Executes dropped EXE 2 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe

pid process

1552 AdvancedRun.exe
1764 AdvancedRun.exe

Windows security modification 2 TTPs 10 IoCs

evasion trojan

Disable or Modify Tools

Modify Registry

Processes:

ce5706f1a1dd859a8233397c2490680b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	ce5706f1a1dd859a8233397c2490680b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	ce5706f1a1dd859a8233397c2490680b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	ce5706f1a1dd859a8233397c2490680b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe = "0"	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	ce5706f1a1dd859a8233397c2490680b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	ce5706f1a1dd859a8233397c2490680b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ce5706f1a1dd859a8233397c2490680b.exe

description pid process target process

PID 3768 set thread context of 2632 3768 ce5706f1a1dd859a8233397c2490680b.exe ce5706f1a1dd859a8233397c2490680b.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 3768 set thread context of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exepowershell.exe

pid	process
1552	AdvancedRun.exe
1552	AdvancedRun.exe
1552	AdvancedRun.exe
1552	AdvancedRun.exe
1764	AdvancedRun.exe
1764	AdvancedRun.exe
1764	AdvancedRun.exe
1764	AdvancedRun.exe
1728	powershell.exe
1728	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exece5706f1a1dd859a8233397c2490680b.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1552	AdvancedRun.exe
Token: SeImpersonatePrivilege	1552	AdvancedRun.exe
Token: SeDebugPrivilege	1764	AdvancedRun.exe
Token: SeImpersonatePrivilege	1764	AdvancedRun.exe
Token: SeDebugPrivilege	3768	ce5706f1a1dd859a8233397c2490680b.exe
Token: SeDebugPrivilege	1728	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

ce5706f1a1dd859a8233397c2490680b.exeAdvancedRun.exe

description	pid	process	target process
PID 3768 wrote to memory of 1552	3768	ce5706f1a1dd859a8233397c2490680b.exe	AdvancedRun.exe
PID 3768 wrote to memory of 1552	3768	ce5706f1a1dd859a8233397c2490680b.exe	AdvancedRun.exe
PID 3768 wrote to memory of 1552	3768	ce5706f1a1dd859a8233397c2490680b.exe	AdvancedRun.exe
PID 1552 wrote to memory of 1764	1552	AdvancedRun.exe	AdvancedRun.exe
PID 1552 wrote to memory of 1764	1552	AdvancedRun.exe	AdvancedRun.exe
PID 1552 wrote to memory of 1764	1552	AdvancedRun.exe	AdvancedRun.exe
PID 3768 wrote to memory of 1728	3768	ce5706f1a1dd859a8233397c2490680b.exe	powershell.exe
PID 3768 wrote to memory of 1728	3768	ce5706f1a1dd859a8233397c2490680b.exe	powershell.exe
PID 3768 wrote to memory of 1728	3768	ce5706f1a1dd859a8233397c2490680b.exe	powershell.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	ce5706f1a1dd859a8233397c2490680b.exe

C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe
"C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.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:3768

C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\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:1552

C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe" /SpecialRun 4101d8 1552
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1764

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\ce5706f1a1dd859a8233397c2490680b.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1728

C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe
"C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe"
2⤵
PID:2632

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