f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	INSTAL~1.EXE

Windows security bypass 2 TTPs 1 IoCs

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	INSTAL~1.EXE

Executes dropped EXE 3 IoCs

pid	Process
1436	INSTAL~1.EXE
1404	INSTAL~1.exe
388	ZCDVDR~1.EXE

Loads dropped DLL 11 IoCs

pid	Process
956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe
1436	INSTAL~1.EXE
1436	INSTAL~1.EXE
1436	INSTAL~1.EXE
1436	INSTAL~1.EXE
956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe
1404	INSTAL~1.exe
1404	INSTAL~1.exe
1404	INSTAL~1.exe
956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe
388	ZCDVDR~1.EXE

Windows security modification 2 TTPs 1 IoCs

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	INSTAL~1.EXE

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	INSTAL~1.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1436 set thread context of 1404	1436	INSTAL~1.EXE	29

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1436	INSTAL~1.EXE

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 1436	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	28
PID 956 wrote to memory of 1436	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	28
PID 956 wrote to memory of 1436	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	28
PID 956 wrote to memory of 1436	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	28
PID 956 wrote to memory of 1436	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	28
PID 956 wrote to memory of 1436	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	28
PID 956 wrote to memory of 1436	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	28
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 1436 wrote to memory of 1404	1436	INSTAL~1.EXE	29
PID 956 wrote to memory of 388	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	30
PID 956 wrote to memory of 388	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	30
PID 956 wrote to memory of 388	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	30
PID 956 wrote to memory of 388	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	30
PID 956 wrote to memory of 388	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	30
PID 956 wrote to memory of 388	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	30
PID 956 wrote to memory of 388	956	f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe	30

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	INSTAL~1.EXE

C:\Users\Admin\AppData\Local\Temp\f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe
"C:\Users\Admin\AppData\Local\Temp\f27ca685a41abfc2c476fb7280dfab3da69f4a09aa3ec6ac5924f72d08327468.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:956
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\INSTAL~1.EXE
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\INSTAL~1.EXE
  2⤵
  - UAC bypass
  - Windows security bypass
  - Executes dropped EXE
  - Loads dropped DLL
  - Windows security modification
  - Checks whether UAC is enabled
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:1436
- - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\INSTAL~1.exe
    "C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\INSTAL~1.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1404
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ZCDVDR~1.EXE
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ZCDVDR~1.EXE
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:388

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry