healer | 8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

defense_evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Modifies Windows Defender TamperProtection settings 3 TTPs 1 IoCs

evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Modifies Windows Defender notification settings 3 TTPs 2 IoCs

defense_evasion trojan

Windows Service

Modify Registry

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender Security Center\Notifications	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Windows security modification 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2728	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2728	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
2728	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
2728	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
2728	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe

C:\Users\Admin\AppData\Local\Temp\8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe
"C:\Users\Admin\AppData\Local\Temp\8d99a357e65f944b466f621b03f497a6c40b30fb513b766fb974b2c55d47192b.exe"
1⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Modifies Windows Defender Real-time Protection settings
- Modifies Windows Defender TamperProtection settings
- Modifies Windows Defender notification settings
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Windows security modification
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

Defense Evasion

Impair Defenses

5

T1562

Disable or Modify Tools

Modify Registry

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Query Registry

3

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2