0ee170eb92a1063c45512e55aa2c4c7e40e58e1cdc77ce13b5fe56163b871531

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

Processes:

svchost.exeilasm.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ilasm.exe

Windows security bypass 2 TTPs 3 IoCs

Disable or Modify Tools

Modify Registry

Processes:

svchost.exeilasm.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe = "0"	ilasm.exe

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:

Microsoft Windows.exesvchost.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation	Microsoft Windows.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

764 svchost.exe

pid	process
764	svchost.exe

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

Modify Registry

Processes:

svchost.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

Microsoft Windows.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	Microsoft Windows.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

svchost.exe

description pid process target process

PID 764 set thread context of 4072 764 svchost.exe ilasm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

3684 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4576 timeout.exe

description	pid	process	target process
PID 764 set thread context of 4072	764	svchost.exe	ilasm.exe

pid	process
3684	schtasks.exe

pid	process
4576	timeout.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

Microsoft Windows.exepowershell.exeilasm.exepowershell.exe

pid	process
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
4804	Microsoft Windows.exe
3564	powershell.exe
3564	powershell.exe
4072	ilasm.exe
4072	ilasm.exe
4196	powershell.exe
4196	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

Microsoft Windows.exesvchost.exepowershell.exeilasm.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4804	Microsoft Windows.exe
Token: SeDebugPrivilege	764	svchost.exe
Token: SeDebugPrivilege	3564	powershell.exe
Token: SeDebugPrivilege	4072	ilasm.exe
Token: SeDebugPrivilege	4196	powershell.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

Microsoft Windows.execmd.execmd.exesvchost.exeilasm.exe

description	pid	process	target process
PID 4804 wrote to memory of 1248	4804	Microsoft Windows.exe	cmd.exe
PID 4804 wrote to memory of 1248	4804	Microsoft Windows.exe	cmd.exe
PID 4804 wrote to memory of 1248	4804	Microsoft Windows.exe	cmd.exe
PID 4804 wrote to memory of 3316	4804	Microsoft Windows.exe	cmd.exe
PID 4804 wrote to memory of 3316	4804	Microsoft Windows.exe	cmd.exe
PID 4804 wrote to memory of 3316	4804	Microsoft Windows.exe	cmd.exe
PID 1248 wrote to memory of 3684	1248	cmd.exe	schtasks.exe
PID 1248 wrote to memory of 3684	1248	cmd.exe	schtasks.exe
PID 1248 wrote to memory of 3684	1248	cmd.exe	schtasks.exe
PID 3316 wrote to memory of 4576	3316	cmd.exe	timeout.exe
PID 3316 wrote to memory of 4576	3316	cmd.exe	timeout.exe
PID 3316 wrote to memory of 4576	3316	cmd.exe	timeout.exe
PID 3316 wrote to memory of 764	3316	cmd.exe	svchost.exe
PID 3316 wrote to memory of 764	3316	cmd.exe	svchost.exe
PID 3316 wrote to memory of 764	3316	cmd.exe	svchost.exe
PID 764 wrote to memory of 3564	764	svchost.exe	powershell.exe
PID 764 wrote to memory of 3564	764	svchost.exe	powershell.exe
PID 764 wrote to memory of 3564	764	svchost.exe	powershell.exe
PID 764 wrote to memory of 4072	764	svchost.exe	ilasm.exe
PID 764 wrote to memory of 4072	764	svchost.exe	ilasm.exe
PID 764 wrote to memory of 4072	764	svchost.exe	ilasm.exe
PID 764 wrote to memory of 4072	764	svchost.exe	ilasm.exe
PID 764 wrote to memory of 4072	764	svchost.exe	ilasm.exe
PID 764 wrote to memory of 4072	764	svchost.exe	ilasm.exe
PID 764 wrote to memory of 4072	764	svchost.exe	ilasm.exe
PID 764 wrote to memory of 4072	764	svchost.exe	ilasm.exe
PID 4072 wrote to memory of 4196	4072	ilasm.exe	powershell.exe
PID 4072 wrote to memory of 4196	4072	ilasm.exe	powershell.exe
PID 4072 wrote to memory of 4196	4072	ilasm.exe	powershell.exe
PID 4072 wrote to memory of 4296	4072	ilasm.exe	CasPol.exe
PID 4072 wrote to memory of 4296	4072	ilasm.exe	CasPol.exe
PID 4072 wrote to memory of 4296	4072	ilasm.exe	CasPol.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

svchost.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe

C:\Users\Admin\AppData\Local\Temp\Microsoft Windows.exe
"C:\Users\Admin\AppData\Local\Temp\Microsoft Windows.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4804

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp757E.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:3316

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:4576

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Executes dropped EXE
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:764

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3564

C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
4⤵
- UAC bypass
- Windows security bypass
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4072

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
5⤵
PID:4296

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe" -Force
5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4196

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1248

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:3684

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry