ramnit | 5325b4efec8e57cf32e4f3bf970c4d02ab8217b3ba7ec0012345fb85e6204a08

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	WaterMark.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\EnableFirewall = "0"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	IEXPLORE.EXE

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

UAC bypass 3 TTPs 3 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"	rundll32mgr.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"	IEXPLORE.EXE

Windows security bypass 2 TTPs 18 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	WaterMark.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\FirewallOverride = "1"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	rundll32mgr.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\AntiVirusOverride = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	rundll32mgr.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\UacDisableNotify = "1"	WaterMark.exe

Executes dropped EXE 2 IoCs

pid	Process
5488	rundll32mgr.exe
5064	WaterMark.exe

Windows security modification 2 TTPs 14 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	rundll32mgr.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\FirewallDisableNotify = "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\UpdatesDisableNotify = "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\AntiVirusOverride = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	rundll32mgr.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	rundll32mgr.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

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	WaterMark.exe

Enumerates connected drives 3 TTPs 4 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

description	ioc	Process
File opened (read-only)	\??\E:	IEXPLORE.EXE
File opened (read-only)	\??\G:	IEXPLORE.EXE
File opened (read-only)	\??\E:	WaterMark.exe
File opened (read-only)	\??\G:	WaterMark.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 31 IoCs

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

upx

resource	yara_rule
behavioral1/memory/5488-6-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5488-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5488-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5488-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5488-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5488-12-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-31-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5488-19-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5488-21-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5488-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5488-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5064-29-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-37-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-42-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-43-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5064-35-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-63-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-62-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-61-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-64-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral1/memory/5064-66-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-65-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-67-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral1/memory/5064-69-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5064-68-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-71-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-70-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-74-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-77-0x0000000003260000-0x00000000042EE000-memory.dmp	upx
behavioral1/memory/5064-78-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/5064-80-0x0000000003260000-0x00000000042EE000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px591C.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SYSTEM.INI	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2752	868	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 14 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6B8CC513-1944-11F0-92E6-C6EE83E2B47F} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2362875047-775336530-2205312478-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
5488	rundll32mgr.exe
5488	rundll32mgr.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
5064	WaterMark.exe
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 39 IoCs

description	pid	Process
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	5064	WaterMark.exe
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE
Token: SeDebugPrivilege	4520	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1008	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1008	iexplore.exe
1008	iexplore.exe
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
5488	rundll32mgr.exe
5064	WaterMark.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 868	2676	rundll32.exe	84
PID 2676 wrote to memory of 868	2676	rundll32.exe	84
PID 2676 wrote to memory of 868	2676	rundll32.exe	84
PID 868 wrote to memory of 5488	868	rundll32.exe	87
PID 868 wrote to memory of 5488	868	rundll32.exe	87
PID 868 wrote to memory of 5488	868	rundll32.exe	87
PID 5488 wrote to memory of 5064	5488	rundll32mgr.exe	90
PID 5488 wrote to memory of 5064	5488	rundll32mgr.exe	90
PID 5488 wrote to memory of 5064	5488	rundll32mgr.exe	90
PID 5064 wrote to memory of 780	5064	WaterMark.exe	8
PID 5064 wrote to memory of 784	5064	WaterMark.exe	9
PID 5064 wrote to memory of 380	5064	WaterMark.exe	13
PID 5064 wrote to memory of 1124	5064	WaterMark.exe	51
PID 5064 wrote to memory of 776	5064	WaterMark.exe	52
PID 5064 wrote to memory of 3140	5064	WaterMark.exe	53
PID 5064 wrote to memory of 3440	5064	WaterMark.exe	56
PID 5064 wrote to memory of 3572	5064	WaterMark.exe	57
PID 5064 wrote to memory of 3768	5064	WaterMark.exe	58
PID 5064 wrote to memory of 3864	5064	WaterMark.exe	59
PID 5064 wrote to memory of 3928	5064	WaterMark.exe	60
PID 5064 wrote to memory of 4032	5064	WaterMark.exe	61
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 5352	5064	WaterMark.exe	92
PID 5064 wrote to memory of 3448	5064	WaterMark.exe	62
PID 5064 wrote to memory of 5856	5064	WaterMark.exe	76
PID 5064 wrote to memory of 5656	5064	WaterMark.exe	81
PID 5064 wrote to memory of 5648	5064	WaterMark.exe	82
PID 5064 wrote to memory of 2676	5064	WaterMark.exe	83
PID 5064 wrote to memory of 868	5064	WaterMark.exe	84
PID 5064 wrote to memory of 868	5064	WaterMark.exe	84
PID 5064 wrote to memory of 224	5064	WaterMark.exe	85
PID 5064 wrote to memory of 4376	5064	WaterMark.exe	86
PID 5064 wrote to memory of 696	5064	WaterMark.exe
PID 5064 wrote to memory of 2752	5064	WaterMark.exe	91
PID 5064 wrote to memory of 2752	5064	WaterMark.exe	91
PID 5064 wrote to memory of 1008	5064	WaterMark.exe	94
PID 5064 wrote to memory of 1008	5064	WaterMark.exe	94
PID 5064 wrote to memory of 4416	5064	WaterMark.exe	95
PID 5064 wrote to memory of 4416	5064	WaterMark.exe	95
PID 1008 wrote to memory of 4520	1008	iexplore.exe	96
PID 1008 wrote to memory of 4520	1008	iexplore.exe	96
PID 1008 wrote to memory of 4520	1008	iexplore.exe	96
PID 5064 wrote to memory of 780	5064	WaterMark.exe	8
PID 5064 wrote to memory of 784	5064	WaterMark.exe	9
PID 5064 wrote to memory of 380	5064	WaterMark.exe	13
PID 5064 wrote to memory of 1124	5064	WaterMark.exe	51
PID 5064 wrote to memory of 776	5064	WaterMark.exe	52
PID 5064 wrote to memory of 3140	5064	WaterMark.exe	53
PID 5064 wrote to memory of 3440	5064	WaterMark.exe	56
PID 5064 wrote to memory of 3572	5064	WaterMark.exe	57
PID 5064 wrote to memory of 3768	5064	WaterMark.exe	58
PID 5064 wrote to memory of 3864	5064	WaterMark.exe	59
PID 5064 wrote to memory of 3928	5064	WaterMark.exe	60
PID 5064 wrote to memory of 4032	5064	WaterMark.exe	61
PID 5064 wrote to memory of 3448	5064	WaterMark.exe	62
PID 5064 wrote to memory of 5856	5064	WaterMark.exe	76
PID 5064 wrote to memory of 5656	5064	WaterMark.exe	81

System policy modification 1 TTPs 2 IoCs

defense_evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	WaterMark.exe

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:780

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:784

C:\Windows\system32\dwm.exe
"dwm.exe"
1⤵
PID:380

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:1124

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:776

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:3140

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3440
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b834b02395c45cfebf66feee71e69937.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b834b02395c45cfebf66feee71e69937.dll,#1
    3⤵
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:868
  - - C:\Windows\SysWOW64\rundll32mgr.exe
      C:\Windows\SysWOW64\rundll32mgr.exe
      4⤵
      Modifies firewall policy service
      UAC bypass
      Windows security bypass
      Executes dropped EXE
      Windows security modification
      Checks whether UAC is enabled
      Drops file in Program Files directory
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:5488
    - - C:\Program Files (x86)\Microsoft\WaterMark.exe
        
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        5⤵
        Modifies firewall policy service
        UAC bypass
        Windows security bypass
        Executes dropped EXE
        Windows security modification
        Checks whether UAC is enabled
        Enumerates connected drives
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of UnmapMainImage
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:5064
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        
        PID:5352
      - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1008
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1008 CREDAT:17410 /prefetch:2
        7⤵
        Modifies firewall policy service
        UAC bypass
        Windows security bypass
        Enumerates connected drives
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:4520
      - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        6⤵
        Modifies Internet Explorer settings
        
        PID:4416
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 624
      4⤵
      Program crash
      PID:2752

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3572

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3768

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3864

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3928

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:4032

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3448

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
1⤵
PID:5856

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
1⤵
PID:5656

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:5648

C:\Windows\system32\BackgroundTaskHost.exe
"C:\Windows\system32\BackgroundTaskHost.exe" -ServerName:BackgroundTaskHost.WebAccountProvider
1⤵
PID:224

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 868 -ip 868
1⤵
PID:4988

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:2880

Network

MITRE ATT&CK Enterprise v16

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

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

Modify Registry