ramnit | f142ef7a4027554cb455a6de9b44b312ba34b9b4188ee45259ba1f4238180a67

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	27ce8081843077b6e9c559267cb19f80N.exe

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Sality
Sality is backdoor written in C++, first discovered in 2003.
backdoor sality

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	27ce8081843077b6e9c559267cb19f80N.exe

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	27ce8081843077b6e9c559267cb19f80N.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\DisableRegistryTools = "1"	27ce8081843077b6e9c559267cb19f80N.exe

Disables Task Manager via registry modification
evasion
Loads dropped DLL 1 IoCs

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

pid process

3700 27ce8081843077b6e9c559267cb19f80N.exe

pid	process
3700	27ce8081843077b6e9c559267cb19f80N.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3700-9-0x00000000023D0000-0x000000000345E000-memory.dmp	upx
behavioral2/memory/3700-14-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral2/memory/3700-10-0x00000000023D0000-0x000000000345E000-memory.dmp	upx
behavioral2/memory/3700-7-0x00000000023D0000-0x000000000345E000-memory.dmp	upx
behavioral2/memory/3700-15-0x00000000023D0000-0x000000000345E000-memory.dmp	upx
behavioral2/memory/3700-8-0x00000000023D0000-0x000000000345E000-memory.dmp	upx
behavioral2/memory/3700-3-0x00000000023D0000-0x000000000345E000-memory.dmp	upx
behavioral2/memory/3700-1-0x00000000023D0000-0x000000000345E000-memory.dmp	upx
behavioral2/memory/3700-16-0x00000000023D0000-0x000000000345E000-memory.dmp	upx

Windows security modification 2 TTPs 7 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	27ce8081843077b6e9c559267cb19f80N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	27ce8081843077b6e9c559267cb19f80N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	27ce8081843077b6e9c559267cb19f80N.exe

Drops file in Windows directory 1 IoCs

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description ioc process

File opened for modification C:\Windows\SYSTEM.INI 27ce8081843077b6e9c559267cb19f80N.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1716 3700 WerFault.exe 27ce8081843077b6e9c559267cb19f80N.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

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
File opened for modification	C:\Windows\SYSTEM.INI	27ce8081843077b6e9c559267cb19f80N.exe

pid	pid_target	process	target process
1716	3700	WerFault.exe	27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	27ce8081843077b6e9c559267cb19f80N.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

27ce8081843077b6e9c559267cb19f80N.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	27ce8081843077b6e9c559267cb19f80N.exe

C:\Users\Admin\AppData\Local\Temp\27ce8081843077b6e9c559267cb19f80N.exe
"C:\Users\Admin\AppData\Local\Temp\27ce8081843077b6e9c559267cb19f80N.exe"
1⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Disables RegEdit via registry modification
- Loads dropped DLL
- Windows security modification
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- System policy modification
PID:3700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3700 -s 6248
2⤵
- Program crash
PID:1716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3700 -ip 3700
1⤵
PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

4

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery