arkei | b826af3338b2d2f0c6b5427ba25a47661ca142e9f331b6443255f359c44036fe

Windows Service

T1543.003

Disable or Modify Tools

Processes:

b6e95ff23f2e0793f36543b91d0d0a0a.exe

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

Modify Registry

Processes:

b6e95ff23f2e0793f36543b91d0d0a0a.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths	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

Nirsoft 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\b73ba4cb-4a1a-4759-90dc-0db8825adb3d\AdvancedRun.exe	Nirsoft

Executes dropped EXE 2 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe

pid process

2504 AdvancedRun.exe
2636 AdvancedRun.exe
Loads dropped DLL 4 IoCs

Processes:

b6e95ff23f2e0793f36543b91d0d0a0a.exeAdvancedRun.exe

pid process

2000 b6e95ff23f2e0793f36543b91d0d0a0a.exe
2000 b6e95ff23f2e0793f36543b91d0d0a0a.exe
2504 AdvancedRun.exe
2504 AdvancedRun.exe

pid	process
2504	AdvancedRun.exe
2636	AdvancedRun.exe

pid	process
2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe
2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe
2504	AdvancedRun.exe
2504	AdvancedRun.exe

Windows security modification 2 TTPs 8 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
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\Paths	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\Real-Time Protection\DisableRealtimeMonitoring = "1"	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 2000 set thread context of 2324 2000 b6e95ff23f2e0793f36543b91d0d0a0a.exe b6e95ff23f2e0793f36543b91d0d0a0a.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

2504 AdvancedRun.exe
2504 AdvancedRun.exe
2636 AdvancedRun.exe
2636 AdvancedRun.exe
2796 powershell.exe

description	pid	process	target process
PID 2000 set thread context of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe

pid	process
2504	AdvancedRun.exe
2504	AdvancedRun.exe
2636	AdvancedRun.exe
2636	AdvancedRun.exe
2796	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exeb6e95ff23f2e0793f36543b91d0d0a0a.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2504	AdvancedRun.exe
Token: SeImpersonatePrivilege	2504	AdvancedRun.exe
Token: SeDebugPrivilege	2636	AdvancedRun.exe
Token: SeImpersonatePrivilege	2636	AdvancedRun.exe
Token: SeDebugPrivilege	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe
Token: SeDebugPrivilege	2796	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

b6e95ff23f2e0793f36543b91d0d0a0a.exeAdvancedRun.exe

description	pid	process	target process
PID 2000 wrote to memory of 2504	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	AdvancedRun.exe
PID 2000 wrote to memory of 2504	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	AdvancedRun.exe
PID 2000 wrote to memory of 2504	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	AdvancedRun.exe
PID 2000 wrote to memory of 2504	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	AdvancedRun.exe
PID 2504 wrote to memory of 2636	2504	AdvancedRun.exe	AdvancedRun.exe
PID 2504 wrote to memory of 2636	2504	AdvancedRun.exe	AdvancedRun.exe
PID 2504 wrote to memory of 2636	2504	AdvancedRun.exe	AdvancedRun.exe
PID 2504 wrote to memory of 2636	2504	AdvancedRun.exe	AdvancedRun.exe
PID 2000 wrote to memory of 2796	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	powershell.exe
PID 2000 wrote to memory of 2796	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	powershell.exe
PID 2000 wrote to memory of 2796	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	powershell.exe
PID 2000 wrote to memory of 2796	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	powershell.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	b6e95ff23f2e0793f36543b91d0d0a0a.exe	b6e95ff23f2e0793f36543b91d0d0a0a.exe
PID 2000 wrote to memory of 2324	2000	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
- Loads dropped DLL
- Windows security modification
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000

C:\Users\Admin\AppData\Local\Temp\b73ba4cb-4a1a-4759-90dc-0db8825adb3d\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\b73ba4cb-4a1a-4759-90dc-0db8825adb3d\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\b73ba4cb-4a1a-4759-90dc-0db8825adb3d\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:2504

C:\Users\Admin\AppData\Local\Temp\b73ba4cb-4a1a-4759-90dc-0db8825adb3d\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\b73ba4cb-4a1a-4759-90dc-0db8825adb3d\AdvancedRun.exe" /SpecialRun 4101d8 2504
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2636

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:2796

C:\Users\Admin\AppData\Local\Temp\b6e95ff23f2e0793f36543b91d0d0a0a.exe
"C:\Users\Admin\AppData\Local\Temp\b6e95ff23f2e0793f36543b91d0d0a0a.exe"
2⤵
PID:2324

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