ramnit | 1d0128fd3184a765076397dd308e51bbc578a3639cb9c08ab6b5c36704d772b4

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,,C:\\Users\\Admin\\AppData\\Local\\lhhtusue\\tnygfver.exe"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

Modifies security service 2 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\mpssvc\Start = "4"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tnygfver.exe	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tnygfver.exe	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral13/memory/3992-2-0x0000000015190000-0x00000000151CD000-memory.dmp	upx
behavioral13/memory/3992-5-0x0000000015190000-0x00000000151CD000-memory.dmp	upx
behavioral13/memory/3992-6-0x0000000015190000-0x00000000151CD000-memory.dmp	upx
behavioral13/memory/3992-7-0x0000000015190000-0x00000000151CD000-memory.dmp	upx
behavioral13/memory/3992-12-0x0000000015190000-0x00000000151CD000-memory.dmp	upx

Windows security modification 2 TTPs 6 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TnyGfver = "C:\\Users\\Admin\\AppData\\Local\\lhhtusue\\tnygfver.exe"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.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"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3992	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
3992	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
3992	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
3992	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3992	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

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"	5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe

C:\Users\Admin\AppData\Local\Temp\5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe
"C:\Users\Admin\AppData\Local\Temp\5f3bfe76bbd22dd8fd936b3833220ba03964b08e28ecf13dafdbbae24a620cb6.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies firewall policy service
- Modifies security service
- UAC bypass
- Windows security bypass
- Drops startup file
- Windows security modification
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- System policy modification
PID:3992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry