xpertrat | 0330d3f58300a7cac8144664d3fb2ee031ddbc7d6ad532de12cd71ed535b7dac

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

Windows security bypass 2 TTPs 1 IoCs

Disabling Security Tools

Modify Registry

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

XpertRAT Core payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/548-168-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

iexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6 = "C:\\Users\\Admin\\AppData\\Roaming\\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6\\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

Windows security modification 2 TTPs 1 IoCs

Disabling Security Tools

Modify Registry

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6 = "C:\\Users\\Admin\\AppData\\Roaming\\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6\\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6 = "C:\\Users\\Admin\\AppData\\Roaming\\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6\\P0U4N118-N5L3-W331-B1K0-Y2V3O6B8B2Q6.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exef74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

description	pid	process	target process
PID 4656 set thread context of 1812	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
PID 1812 set thread context of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.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
T1053

Processes:

schtasks.exe

pid process

1768 schtasks.exe

pid	process
1768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exepowershell.exef74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

pid	process
4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
32	powershell.exe
1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
32	powershell.exe
1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exepowershell.exeiexplore.exe

description	pid	process
Token: SeDebugPrivilege	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
Token: SeDebugPrivilege	32	powershell.exe
Token: SeDebugPrivilege	548	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exeiexplore.exe

pid process

1812 f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
548 iexplore.exe

pid	process
1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
548	iexplore.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exef74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

description	pid	process	target process
PID 4656 wrote to memory of 32	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	powershell.exe
PID 4656 wrote to memory of 32	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	powershell.exe
PID 4656 wrote to memory of 32	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	powershell.exe
PID 4656 wrote to memory of 1768	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	schtasks.exe
PID 4656 wrote to memory of 1768	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	schtasks.exe
PID 4656 wrote to memory of 1768	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	schtasks.exe
PID 4656 wrote to memory of 1812	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
PID 4656 wrote to memory of 1812	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
PID 4656 wrote to memory of 1812	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
PID 4656 wrote to memory of 1812	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
PID 4656 wrote to memory of 1812	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
PID 4656 wrote to memory of 1812	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
PID 4656 wrote to memory of 1812	4656	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
PID 1812 wrote to memory of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.exe
PID 1812 wrote to memory of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.exe
PID 1812 wrote to memory of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.exe
PID 1812 wrote to memory of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.exe
PID 1812 wrote to memory of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.exe
PID 1812 wrote to memory of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.exe
PID 1812 wrote to memory of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.exe
PID 1812 wrote to memory of 548	1812	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe

C:\Users\Admin\AppData\Local\Temp\f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
"C:\Users\Admin\AppData\Local\Temp\f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4656

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tQcdUx.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:32

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tQcdUx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp203A.tmp"
2⤵
- Creates scheduled task(s)
PID:1768

C:\Users\Admin\AppData\Local\Temp\f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
"C:\Users\Admin\AppData\Local\Temp\f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe"
2⤵
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1812

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\f74ab1efa874c19f32108d0719951e9b2a6ab0bb9f9b66c53145e75efec1684b.exe
3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:548

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

2

T1060

Scheduled Task

T1053

Privilege Escalation

Bypass User Account Control

T1088

Scheduled Task

T1053

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

3

Modify Registry

6

Credential Access

Discovery

Query Registry