ramnit | d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,c:\\program files (x86)\\microsoft\\watermark.exe"	svchost.exe

Modifies firewall policy service 2 TTPs 9 IoCs

evasion

Modify Registry

Modify Existing Service

T1031

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exesvchost.exeWaterMark.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	WaterMark.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 3 IoCs

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exeWaterMark.exesvchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

Windows security bypass 2 TTPs 18 IoCs

Disabling Security Tools

Modify Registry

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exesvchost.exeWaterMark.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

WaterMark.exe

pid process

1656 WaterMark.exe

pid	process
1656	WaterMark.exe

UPX packed file 14 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1488-55-0x0000000002120000-0x00000000031AE000-memory.dmp	upx
behavioral1/memory/1488-59-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1488-58-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1488-64-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1488-66-0x0000000002120000-0x00000000031AE000-memory.dmp	upx
behavioral1/memory/1488-61-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/memory/1656-68-0x0000000002140000-0x00000000031CE000-memory.dmp	upx
behavioral1/memory/1656-79-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/memory/1656-83-0x0000000002140000-0x00000000031CE000-memory.dmp	upx
behavioral1/memory/1656-86-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/memory/1656-151-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1656-152-0x0000000002140000-0x00000000031CE000-memory.dmp	upx
behavioral1/memory/288-203-0x0000000002C50000-0x0000000003CDE000-memory.dmp	upx
behavioral1/memory/288-285-0x0000000002C50000-0x0000000003CDE000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

WaterMark.exe

pid process

1656 WaterMark.exe

pid	process
1656	WaterMark.exe

Loads dropped DLL 2 IoCs

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

pid	process
1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

Windows security modification 2 TTPs 14 IoCs

Disabling Security Tools

Modify Registry

Processes:

WaterMark.exed1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	WaterMark.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exeWaterMark.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	WaterMark.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

svchost.exeWaterMark.exe

description	ioc	process
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\O:	svchost.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\W:	svchost.exe
File opened (read-only)	\??\Y:	svchost.exe
File opened (read-only)	\??\J:	WaterMark.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\Z:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe
File opened (read-only)	\??\X:	svchost.exe
File opened (read-only)	\??\F:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\G:	WaterMark.exe
File opened (read-only)	\??\H:	WaterMark.exe
File opened (read-only)	\??\K:	WaterMark.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\E:	WaterMark.exe
File opened (read-only)	\??\I:	WaterMark.exe

Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Processes:

svchost.exe

description ioc process

File opened for modification C:\autorun.inf svchost.exe
Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description ioc process

File created C:\Windows\SysWOW64\dmlconf.dat svchost.exe
File opened for modification C:\Windows\SysWOW64\dmlconf.dat svchost.exe

description	ioc	process
File opened for modification	C:\autorun.inf	svchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe
File opened for modification	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe

Drops file in Program Files directory 5 IoCs

Processes:

svchost.exed1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	svchost.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px2C0.tmp	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	svchost.exe

Drops file in Windows directory 1 IoCs

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

description ioc process

File opened for modification C:\Windows\SYSTEM.INI d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

description	ioc	process
File opened for modification	C:\Windows\SYSTEM.INI	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exeWaterMark.exesvchost.exesvchost.exe

pid	process
1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
1656	WaterMark.exe
1656	WaterMark.exe
1656	WaterMark.exe
1656	WaterMark.exe
1656	WaterMark.exe
1656	WaterMark.exe
1656	WaterMark.exe
1656	WaterMark.exe
1656	WaterMark.exe
1656	WaterMark.exe
1840	svchost.exe
1840	svchost.exe
288	svchost.exe
1840	svchost.exe
288	svchost.exe
1840	svchost.exe
288	svchost.exe
288	svchost.exe
288	svchost.exe
1840	svchost.exe
288	svchost.exe
288	svchost.exe
288	svchost.exe
288	svchost.exe
288	svchost.exe
288	svchost.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exeWaterMark.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1656	WaterMark.exe
Token: SeDebugPrivilege	1840	svchost.exe
Token: SeDebugPrivilege	1656	WaterMark.exe

Suspicious use of UnmapMainImage 2 IoCs

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exeWaterMark.exe

pid process

1488 d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
1656 WaterMark.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exeWaterMark.exesvchost.exe

description	pid	process	target process
PID 1488 wrote to memory of 1160	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe	taskhost.exe
PID 1488 wrote to memory of 1232	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe	Dwm.exe
PID 1488 wrote to memory of 1284	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe	Explorer.EXE
PID 1488 wrote to memory of 1656	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe	WaterMark.exe
PID 1488 wrote to memory of 1656	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe	WaterMark.exe
PID 1488 wrote to memory of 1656	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe	WaterMark.exe
PID 1488 wrote to memory of 1656	1488	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe	WaterMark.exe
PID 1656 wrote to memory of 1160	1656	WaterMark.exe	taskhost.exe
PID 1656 wrote to memory of 1232	1656	WaterMark.exe	Dwm.exe
PID 1656 wrote to memory of 1284	1656	WaterMark.exe	Explorer.EXE
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1160	1656	WaterMark.exe	taskhost.exe
PID 1656 wrote to memory of 1232	1656	WaterMark.exe	Dwm.exe
PID 1656 wrote to memory of 1284	1656	WaterMark.exe	Explorer.EXE
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 288	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1656 wrote to memory of 1840	1656	WaterMark.exe	svchost.exe
PID 1840 wrote to memory of 260	1840	svchost.exe	smss.exe
PID 1840 wrote to memory of 260	1840	svchost.exe	smss.exe
PID 1840 wrote to memory of 260	1840	svchost.exe	smss.exe
PID 1840 wrote to memory of 260	1840	svchost.exe	smss.exe
PID 1840 wrote to memory of 260	1840	svchost.exe	smss.exe
PID 1840 wrote to memory of 332	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 332	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 332	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 332	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 332	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 368	1840	svchost.exe	wininit.exe
PID 1840 wrote to memory of 368	1840	svchost.exe	wininit.exe
PID 1840 wrote to memory of 368	1840	svchost.exe	wininit.exe
PID 1840 wrote to memory of 368	1840	svchost.exe	wininit.exe
PID 1840 wrote to memory of 368	1840	svchost.exe	wininit.exe
PID 1840 wrote to memory of 380	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 380	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 380	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 380	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 380	1840	svchost.exe	csrss.exe
PID 1840 wrote to memory of 416	1840	svchost.exe	winlogon.exe
PID 1840 wrote to memory of 416	1840	svchost.exe	winlogon.exe
PID 1840 wrote to memory of 416	1840	svchost.exe	winlogon.exe
PID 1840 wrote to memory of 416	1840	svchost.exe	winlogon.exe
PID 1840 wrote to memory of 416	1840	svchost.exe	winlogon.exe
PID 1840 wrote to memory of 460	1840	svchost.exe	services.exe
PID 1840 wrote to memory of 460	1840	svchost.exe	services.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

Processes:

WaterMark.exed1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:476

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:460

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
2⤵
PID:680

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
2⤵
PID:292

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
2⤵
PID:1640

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
2⤵
PID:1108

C:\Windows\system32\taskhost.exe
"taskhost.exe"
2⤵
PID:1160

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
2⤵
PID:1056

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
2⤵
PID:452

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
2⤵
PID:896

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
2⤵
PID:860

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
2⤵
PID:820

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
2⤵
PID:756

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
2⤵
PID:600

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:416

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:380

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:368

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
2⤵
PID:484

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:332

C:\Windows\System32\smss.exe
\SystemRoot\System32\smss.exe
1⤵
PID:260

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:1128

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1284

C:\Users\Admin\AppData\Local\Temp\d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe
"C:\Users\Admin\AppData\Local\Temp\d1b90eda8f53941e0e5eb0ec4ca270b52027b03bea6f312a7647f9f3c39040cc.exe"
2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Loads dropped DLL
- Windows security modification
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1488

C:\Program Files (x86)\Microsoft\WaterMark.exe
"C:\Program Files (x86)\Microsoft\WaterMark.exe"
3⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Executes dropped EXE
- Deletes itself
- Windows security modification
- Checks whether UAC is enabled
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1656

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
4⤵
- Modifies WinLogon for persistence
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:288

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1840

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Winlogon Helper DLL

T1004

Modify Existing Service

T1031

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Modify Registry

6

Bypass User Account Control

T1088

Disabling Security Tools

3

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

T1012

Peripheral Device Discovery

T1120

Lateral Movement

Replication Through Removable Media