xpertrat | 0b3ee4059f431e5bfd85d8bfcce4bb5d2a33b40baca82a36dbca89ea5e4a14b3

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

Windows security bypass 2 TTPs 1 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

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

XpertRAT Core payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2464-22-0x0000000000400000-0x0000000000443000-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
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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe

Windows security modification 2 TTPs 1 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.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-1-5-21-86725733-3001458681-3405935542-1000\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:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

description	pid	process	target process
PID 3044 set thread context of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 2660 set thread context of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

pid	process
2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

iexplore.exe

description pid process

Token: SeDebugPrivilege 2464 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exeiexplore.exe

pid process

2660 27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
2464 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	2464	iexplore.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

description	pid	process	target process
PID 3044 wrote to memory of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 3044 wrote to memory of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 3044 wrote to memory of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 3044 wrote to memory of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 3044 wrote to memory of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 3044 wrote to memory of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 3044 wrote to memory of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 3044 wrote to memory of 2660	3044	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe
PID 2660 wrote to memory of 2464	2660	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe

C:\Users\Admin\AppData\Local\Temp\27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
"C:\Users\Admin\AppData\Local\Temp\27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3044

C:\Users\Admin\AppData\Local\Temp\27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
"C:\Users\Admin\AppData\Local\Temp\27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.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:2660

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\27216219fbe93818c217c05b66b6586ab58bb000b1c9bc96da93561923f1fce9.exe
3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2464

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