arkei | b34170c638c226b607143d245b15d215fb9ba7bcf05db48967b158841509e250

Windows Service

T1543.003

Disable or Modify Tools

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exe

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

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
\Users\Admin\AppData\Local\Temp\6e88186a-d0f1-48fb-b5ef-f6ec404b2be2\AdvancedRun.exe	Nirsoft

Executes dropped EXE 2 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe

pid process

2676 AdvancedRun.exe
2984 AdvancedRun.exe
Loads dropped DLL 4 IoCs

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exeAdvancedRun.exe

pid process

1980 7a6beb3d6b5da7f3c02504f7bac4699b.exe
1980 7a6beb3d6b5da7f3c02504f7bac4699b.exe
2676 AdvancedRun.exe
2676 AdvancedRun.exe

pid	process
2676	AdvancedRun.exe
2984	AdvancedRun.exe

pid	process
1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe
1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe
2676	AdvancedRun.exe
2676	AdvancedRun.exe

Windows security modification 2 TTPs 8 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
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\Real-Time Protection	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	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

Suspicious use of SetThreadContext 1 IoCs

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exe

description pid process target process

PID 1980 set thread context of 2936 1980 7a6beb3d6b5da7f3c02504f7bac4699b.exe 7a6beb3d6b5da7f3c02504f7bac4699b.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exepowershell.exe

pid process

2676 AdvancedRun.exe
2676 AdvancedRun.exe
2984 AdvancedRun.exe
2984 AdvancedRun.exe
2824 powershell.exe

description	pid	process	target process
PID 1980 set thread context of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe

pid	process
2676	AdvancedRun.exe
2676	AdvancedRun.exe
2984	AdvancedRun.exe
2984	AdvancedRun.exe
2824	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe7a6beb3d6b5da7f3c02504f7bac4699b.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2676	AdvancedRun.exe
Token: SeImpersonatePrivilege	2676	AdvancedRun.exe
Token: SeDebugPrivilege	2984	AdvancedRun.exe
Token: SeImpersonatePrivilege	2984	AdvancedRun.exe
Token: SeDebugPrivilege	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe
Token: SeDebugPrivilege	2824	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

7a6beb3d6b5da7f3c02504f7bac4699b.exeAdvancedRun.exe

description	pid	process	target process
PID 1980 wrote to memory of 2676	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	AdvancedRun.exe
PID 1980 wrote to memory of 2676	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	AdvancedRun.exe
PID 1980 wrote to memory of 2676	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	AdvancedRun.exe
PID 1980 wrote to memory of 2676	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	AdvancedRun.exe
PID 2676 wrote to memory of 2984	2676	AdvancedRun.exe	AdvancedRun.exe
PID 2676 wrote to memory of 2984	2676	AdvancedRun.exe	AdvancedRun.exe
PID 2676 wrote to memory of 2984	2676	AdvancedRun.exe	AdvancedRun.exe
PID 2676 wrote to memory of 2984	2676	AdvancedRun.exe	AdvancedRun.exe
PID 1980 wrote to memory of 2824	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	powershell.exe
PID 1980 wrote to memory of 2824	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	powershell.exe
PID 1980 wrote to memory of 2824	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	powershell.exe
PID 1980 wrote to memory of 2824	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	powershell.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	7a6beb3d6b5da7f3c02504f7bac4699b.exe	7a6beb3d6b5da7f3c02504f7bac4699b.exe
PID 1980 wrote to memory of 2936	1980	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
- Loads dropped DLL
- Windows security modification
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980

C:\Users\Admin\AppData\Local\Temp\6e88186a-d0f1-48fb-b5ef-f6ec404b2be2\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\6e88186a-d0f1-48fb-b5ef-f6ec404b2be2\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\6e88186a-d0f1-48fb-b5ef-f6ec404b2be2\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2676

C:\Users\Admin\AppData\Local\Temp\6e88186a-d0f1-48fb-b5ef-f6ec404b2be2\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\6e88186a-d0f1-48fb-b5ef-f6ec404b2be2\AdvancedRun.exe" /SpecialRun 4101d8 2676
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2984

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:2824

C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe
"C:\Users\Admin\AppData\Local\Temp\7a6beb3d6b5da7f3c02504f7bac4699b.exe"
2⤵
PID:2936

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

3

Impair Defenses

3

T1562

Disable or Modify Tools

3

Credential Access

Discovery

System Information Discovery