ramnit | e2cadb0766cf2fc20a527c917f4475388ef3fbd73b8e0c6d071b695afbb1dba3

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 3 TTPs 9 IoCs

evasion

Modify Registry

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\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"	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\DoNotAllowExceptions = "0"	svchost.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"	WaterMark.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	svchost.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

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"	svchost.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\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\FirewallDisableNotify = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	svchost.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\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\UacDisableNotify = "1"	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\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\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\UpdatesDisableNotify = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
2920	rundll32mgr.exe
2648	WaterMark.exe

Loads dropped DLL 4 IoCs

pid	Process
2436	rundll32.exe
2436	rundll32.exe
2920	rundll32mgr.exe
2920	rundll32mgr.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral31/memory/2920-18-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral31/memory/2920-17-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral31/memory/2920-33-0x0000000002640000-0x00000000036CE000-memory.dmp	upx
behavioral31/memory/2920-30-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral31/memory/2920-12-0x0000000002640000-0x00000000036CE000-memory.dmp	upx
behavioral31/memory/2920-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral31/memory/2920-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral31/memory/2920-14-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral31/memory/2920-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral31/memory/2648-42-0x0000000002670000-0x00000000036FE000-memory.dmp	upx
behavioral31/memory/2648-47-0x0000000002670000-0x00000000036FE000-memory.dmp	upx
behavioral31/memory/2648-52-0x0000000002670000-0x00000000036FE000-memory.dmp	upx
behavioral31/memory/2648-710-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral31/memory/2648-711-0x0000000002670000-0x00000000036FE000-memory.dmp	upx

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\UpdatesDisableNotify = "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\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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "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\AntiVirusOverride = "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\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"	WaterMark.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc	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 16 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:	WaterMark.exe
File opened (read-only)	\??\J:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\H:	WaterMark.exe
File opened (read-only)	\??\I:	WaterMark.exe
File opened (read-only)	\??\L:	WaterMark.exe
File opened (read-only)	\??\M:	WaterMark.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\G:	WaterMark.exe
File opened (read-only)	\??\J:	WaterMark.exe
File opened (read-only)	\??\K:	WaterMark.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe

Drops file in System32 directory 3 IoCs

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

description	ioc	Process
File opened for modification	C:\Program Files\Common Files\System\msadc\msdaprsr.dll	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\D3DCompiler_47.dll	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\iexplore.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\appletviewer.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jrunscript.exe	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\micaut.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPCEXT.DLL	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\ado\msadomd.dll	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jconsole.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\serialver.exe	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\IpsMigrationPlugin.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\TipBand.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\tiptsf.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\msadcer.dll	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\idlj.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\ktab.exe	svchost.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxF0E.tmp	rundll32mgr.exe
File opened for modification	C:\Program Files\7-Zip\7-zip.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\DirectDB.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\IpsPlugin.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\msadcor.dll	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\DiagnosticsHub_is.dll	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\F12.dll	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\JSProfilerCore.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\tipskins.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\tpcps.dll	svchost.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\VSTO\vstoee.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\ado\msador15.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\journal.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\tipresx.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\MSInfo\msinfo32.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Peacock.htm	svchost.exe
File opened for modification	C:\Program Files\DVD Maker\PipeTran.dll	svchost.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\WidevineCdm\_platform_specific\win_x64\widevinecdm.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\ado\msadrh15.dll	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\iedvtool.dll	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7z.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\Microsoft.Ink.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\mshwLatin.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\msadce.dll	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\RELEASE-NOTES.html	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\msdaosp.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\sqlxmlx.dll	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe	svchost.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\mshwgst.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\TabIpsps.dll	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\TabTip.exe	svchost.exe
File opened for modification	C:\Program Files\DVD Maker\Pipeline.dll	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\DiagnosticsHub.DataWarehouse.dll	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\klist.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\README-JDK.html	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\jsdbgui.dll	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\extcheck.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jvisualvm.exe	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPWMI.DLL	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\msadds.dll	svchost.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\mshwjpn.dll	svchost.exe

Drops file in Windows directory 1 IoCs

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3024	2436	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2648	WaterMark.exe
2648	WaterMark.exe
2648	WaterMark.exe
2648	WaterMark.exe
2648	WaterMark.exe
2648	WaterMark.exe
2648	WaterMark.exe
2648	WaterMark.exe
2648	WaterMark.exe
1148	svchost.exe
1148	svchost.exe
2648	WaterMark.exe
1148	svchost.exe
1148	svchost.exe
2368	svchost.exe
1148	svchost.exe
1148	svchost.exe
2368	svchost.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2648	WaterMark.exe
Token: SeDebugPrivilege	2648	WaterMark.exe
Token: SeDebugPrivilege	2648	WaterMark.exe
Token: SeDebugPrivilege	1148	svchost.exe
Token: SeDebugPrivilege	2648	WaterMark.exe
Token: SeDebugPrivilege	2436	rundll32.exe
Token: SeDebugPrivilege	2648	WaterMark.exe
Token: SeDebugPrivilege	2368	svchost.exe
Token: SeDebugPrivilege	2368	svchost.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2920	rundll32mgr.exe
2648	WaterMark.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2436	2276	rundll32.exe	28
PID 2276 wrote to memory of 2436	2276	rundll32.exe	28
PID 2276 wrote to memory of 2436	2276	rundll32.exe	28
PID 2276 wrote to memory of 2436	2276	rundll32.exe	28
PID 2276 wrote to memory of 2436	2276	rundll32.exe	28
PID 2276 wrote to memory of 2436	2276	rundll32.exe	28
PID 2276 wrote to memory of 2436	2276	rundll32.exe	28
PID 2436 wrote to memory of 2920	2436	rundll32.exe	29
PID 2436 wrote to memory of 2920	2436	rundll32.exe	29
PID 2436 wrote to memory of 2920	2436	rundll32.exe	29
PID 2436 wrote to memory of 2920	2436	rundll32.exe	29
PID 2436 wrote to memory of 3024	2436	rundll32.exe	30
PID 2436 wrote to memory of 3024	2436	rundll32.exe	30
PID 2436 wrote to memory of 3024	2436	rundll32.exe	30
PID 2436 wrote to memory of 3024	2436	rundll32.exe	30
PID 2920 wrote to memory of 2648	2920	rundll32mgr.exe	31
PID 2920 wrote to memory of 2648	2920	rundll32mgr.exe	31
PID 2920 wrote to memory of 2648	2920	rundll32mgr.exe	31
PID 2920 wrote to memory of 2648	2920	rundll32mgr.exe	31
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 2368	2648	WaterMark.exe	32
PID 2648 wrote to memory of 1072	2648	WaterMark.exe	18
PID 2648 wrote to memory of 1128	2648	WaterMark.exe	19
PID 2648 wrote to memory of 1152	2648	WaterMark.exe	20
PID 2648 wrote to memory of 1712	2648	WaterMark.exe	23
PID 2648 wrote to memory of 2276	2648	WaterMark.exe	27
PID 2648 wrote to memory of 2436	2648	WaterMark.exe	28
PID 2648 wrote to memory of 2436	2648	WaterMark.exe	28
PID 2648 wrote to memory of 3024	2648	WaterMark.exe	30
PID 2648 wrote to memory of 3024	2648	WaterMark.exe	30
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 2648 wrote to memory of 1148	2648	WaterMark.exe	33
PID 1148 wrote to memory of 260	1148	svchost.exe	1
PID 1148 wrote to memory of 260	1148	svchost.exe	1
PID 1148 wrote to memory of 260	1148	svchost.exe	1
PID 1148 wrote to memory of 260	1148	svchost.exe	1
PID 1148 wrote to memory of 260	1148	svchost.exe	1
PID 1148 wrote to memory of 340	1148	svchost.exe	2
PID 1148 wrote to memory of 340	1148	svchost.exe	2
PID 1148 wrote to memory of 340	1148	svchost.exe	2
PID 1148 wrote to memory of 340	1148	svchost.exe	2
PID 1148 wrote to memory of 340	1148	svchost.exe	2
PID 1148 wrote to memory of 388	1148	svchost.exe	3
PID 1148 wrote to memory of 388	1148	svchost.exe	3
PID 1148 wrote to memory of 388	1148	svchost.exe	3
PID 1148 wrote to memory of 388	1148	svchost.exe	3
PID 1148 wrote to memory of 388	1148	svchost.exe	3
PID 1148 wrote to memory of 400	1148	svchost.exe	4

System policy modification 1 TTPs 2 IoCs

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

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:340

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:388
- C:\Windows\system32\services.exe
  C:\Windows\system32\services.exe
  2⤵
  PID:484
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch
    3⤵
    PID:592
  - - C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      4⤵
      PID:1712
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k RPCSS
    3⤵
    PID:672
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
    3⤵
    PID:756
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
    3⤵
    PID:804
  - - C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      4⤵
      PID:1128
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    3⤵
    PID:840
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService
    3⤵
    PID:972
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k NetworkService
    3⤵
    PID:284
- - C:\Windows\System32\spoolsv.exe
    C:\Windows\System32\spoolsv.exe
    3⤵
    PID:1052
- - C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    3⤵
    PID:1072
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
    3⤵
    PID:1176
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
    3⤵
    PID:1736
- - C:\Windows\system32\sppsvc.exe
    C:\Windows\system32\sppsvc.exe
    3⤵
    PID:2940
- C:\Windows\system32\lsass.exe
  C:\Windows\system32\lsass.exe
  2⤵
  PID:492
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:500

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:400

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1152
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\[DemonArchives]ddc0d08019efa4cc5f2a39de99cc0a85.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2276
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\[DemonArchives]ddc0d08019efa4cc5f2a39de99cc0a85.dll,#1
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2436
  - - C:\Windows\SysWOW64\rundll32mgr.exe
      C:\Windows\SysWOW64\rundll32mgr.exe
      4⤵
      Modifies firewall policy service
      UAC bypass
      Windows security bypass
      Executes dropped EXE
      Loads dropped DLL
      Windows security modification
      Checks whether UAC is enabled
      Drops file in Program Files directory
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:2920
    - - 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
        Drops file in Windows directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of UnmapMainImage
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:2648
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Modifies WinLogon for persistence
        Modifies firewall policy service
        UAC bypass
        Windows security bypass
        Enumerates connected drives
        Drops file in System32 directory
        Drops file in Program Files directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2368
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1148
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 228
      4⤵
      Program crash
      PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

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