xpertrat | c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

Windows security bypass 2 TTPs 1 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

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

XpertRAT Core payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/748-20-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4 = "C:\\Users\\Admin\\AppData\\Roaming\\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4\\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4.exe"	iexplore.exe

Windows security modification 2 TTPs 1 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

iexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4 = "C:\\Users\\Admin\\AppData\\Roaming\\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4\\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4.exe"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4 = "C:\\Users\\Admin\\AppData\\Roaming\\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4\\I8N3F0X7-G4E2-P2S0-T0D7-R1N2H5T660I4.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exec24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

description	pid	process	target process
PID 4728 set thread context of 2440	4728	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
PID 2440 set thread context of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

pid	process
2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

iexplore.exe

description pid process

Token: SeDebugPrivilege 748 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exeiexplore.exe

pid process

2440 c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
748 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	748	iexplore.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exec24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

description	pid	process	target process
PID 4728 wrote to memory of 2440	4728	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
PID 4728 wrote to memory of 2440	4728	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
PID 4728 wrote to memory of 2440	4728	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
PID 4728 wrote to memory of 2440	4728	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
PID 4728 wrote to memory of 2440	4728	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
PID 4728 wrote to memory of 2440	4728	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
PID 4728 wrote to memory of 2440	4728	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
PID 2440 wrote to memory of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe
PID 2440 wrote to memory of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe
PID 2440 wrote to memory of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe
PID 2440 wrote to memory of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe
PID 2440 wrote to memory of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe
PID 2440 wrote to memory of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe
PID 2440 wrote to memory of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe
PID 2440 wrote to memory of 748	2440	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe

C:\Users\Admin\AppData\Local\Temp\c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
"C:\Users\Admin\AppData\Local\Temp\c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4728

C:\Users\Admin\AppData\Local\Temp\c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
"C:\Users\Admin\AppData\Local\Temp\c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.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:2440

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\c24566c0745944cbc188bca73f43e78f9824a22f05089665e6e09f01294f5c46.exe
3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:748

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

3

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery