539beafc9303883726193437beb5fabb724b493a426999a306934fea6e13b114

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	Comprovante.exe

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

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

Windows security bypass 2 TTPs 7 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\FirewallOverride = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesOverride = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\UACDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusOverride = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify = "1"	Comprovante.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NatGat_.exe	Comprovante.exe

Windows security modification 2 TTPs 11 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesOverride = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\AutoUpdateDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\InternetSettingsDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusOverride = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\FirewallOverride = "1"	Comprovante.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\Svc	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\UACDisableNotify = "1"	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Security Center\FirstRunDisabled = "1"	Comprovante.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"	Comprovante.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Download	Comprovante.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no"	Comprovante.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Download\RunInvalidSignatures = "1"	Comprovante.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\Beholder.exe	Comprovante.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000_Classes\Applications\regss.exe	Comprovante.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000_Classes\Applications\Nicrosoft.exe\TaskbarGroupIcon = "C:\\Program Files\\AVG\\AV"	Comprovante.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000_Classes\Applications	Comprovante.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000_Classes\Applications\regss.exe\TaskbarGroupIcon = "C:\\Program Files\\AVG\\AV"	Comprovante.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000_Classes\Applications\NatGat_.exe	Comprovante.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000_Classes\Applications\Nicrosoft.exe	Comprovante.exe
Key created	\REGISTRY\USER\S-1-5-21-15044950-4219544130-4274662314-1000\Software\Classes\Applications\Nicrosoft.exe	Comprovante.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\Nicrosoft.exe\NoOpenWith	Comprovante.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\NatGat_.exe	Comprovante.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\NatGat_.exe\NoOpenWith	Comprovante.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\Beholder.exe\NoOpenWith	Comprovante.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Applications\Nicrosoft.exe	Comprovante.exe
Key created	\REGISTRY\USER\S-1-5-21-15044950-4219544130-4274662314-1000\Software\Classes\Applications\inicio.exe	Comprovante.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000_Classes\Applications\NatGat_.exe\TaskbarGroupIcon = "C:\\Program Files\\AVG\\AV"	Comprovante.exe
Key created	\REGISTRY\USER\S-1-5-21-15044950-4219544130-4274662314-1000\Software\Classes\Applications\regss.exe	Comprovante.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	Comprovante.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Comprovante.exe

C:\Users\Admin\AppData\Local\Temp\Comprovante.exe
"C:\Users\Admin\AppData\Local\Temp\Comprovante.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- UAC bypass
- Windows security bypass
- Drops startup file
- Windows security modification
- Checks whether UAC is enabled
- Modifies Internet Explorer settings
- Modifies registry class
- System policy modification
PID:1240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

3

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery