ramnit | 4ca7f144aebfa5eca9400066cdaa493fdb3a927e10df8f827c4059977979a0fc

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

Windows security bypass 2 TTPs 12 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
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\AntiVirusDisableNotify = "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\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\UacDisableNotify = "1"	WaterMark.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

Disables RegEdit via registry modification 2 IoCs

defense_evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\DisableRegistryTools = "1"	rundll32mgr.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\DisableRegistryTools = "1"	WaterMark.exe

Disables Task Manager via registry modification
defense_evasion

Modifies Windows Firewall 2 TTPs 3 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
724	netsh.exe
2612	netsh.exe
2652	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
208	rundll32mgr.exe
336	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\FirewallDisableNotify = "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\AntiVirusDisableNotify = "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\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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	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\FirewallOverride = "1"	WaterMark.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	WaterMark.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

persistence privilege_escalation

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

Drops file in System32 directory 1 IoCs

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

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/208-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/208-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/208-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/208-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/208-13-0x0000000002500000-0x0000000003532000-memory.dmp	upx
behavioral2/memory/208-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/208-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/208-21-0x0000000002500000-0x0000000003532000-memory.dmp	upx
behavioral2/memory/208-19-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/336-40-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/336-29-0x00000000024D0000-0x0000000003502000-memory.dmp	upx
behavioral2/memory/336-46-0x00000000024D0000-0x0000000003502000-memory.dmp	upx
behavioral2/memory/336-47-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/336-41-0x00000000024D0000-0x0000000003502000-memory.dmp	upx
behavioral2/memory/336-60-0x00000000024D0000-0x0000000003502000-memory.dmp	upx
behavioral2/memory/336-62-0x00000000024D0000-0x0000000003502000-memory.dmp	upx
behavioral2/memory/336-79-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/336-109-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px565D.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

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D78C2143-0718-11F0-A1E4-DE2A7B6BFC0A} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\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-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D78E8394-0718-11F0-A1E4-DE2A7B6BFC0A} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe
336	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe
Token: SeDebugPrivilege	336	WaterMark.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4628	iexplore.exe
4652	iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4628	iexplore.exe
4628	iexplore.exe
4652	iexplore.exe
4652	iexplore.exe
3096	IEXPLORE.EXE
3096	IEXPLORE.EXE
3668	IEXPLORE.EXE
3668	IEXPLORE.EXE
3668	IEXPLORE.EXE
3668	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
208	rundll32mgr.exe
336	WaterMark.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 5048	5076	rundll32.exe	86
PID 5076 wrote to memory of 5048	5076	rundll32.exe	86
PID 5076 wrote to memory of 5048	5076	rundll32.exe	86
PID 5048 wrote to memory of 208	5048	rundll32.exe	87
PID 5048 wrote to memory of 208	5048	rundll32.exe	87
PID 5048 wrote to memory of 208	5048	rundll32.exe	87
PID 208 wrote to memory of 724	208	rundll32mgr.exe	88
PID 208 wrote to memory of 724	208	rundll32mgr.exe	88
PID 208 wrote to memory of 724	208	rundll32mgr.exe	88
PID 208 wrote to memory of 336	208	rundll32mgr.exe	89
PID 208 wrote to memory of 336	208	rundll32mgr.exe	89
PID 208 wrote to memory of 336	208	rundll32mgr.exe	89
PID 336 wrote to memory of 2612	336	WaterMark.exe	91
PID 336 wrote to memory of 2612	336	WaterMark.exe	91
PID 336 wrote to memory of 2612	336	WaterMark.exe	91
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 1856	336	WaterMark.exe	93
PID 336 wrote to memory of 768	336	WaterMark.exe	8
PID 336 wrote to memory of 776	336	WaterMark.exe	9
PID 336 wrote to memory of 384	336	WaterMark.exe	13
PID 336 wrote to memory of 2988	336	WaterMark.exe	50
PID 336 wrote to memory of 3056	336	WaterMark.exe	52
PID 336 wrote to memory of 732	336	WaterMark.exe	53
PID 336 wrote to memory of 3384	336	WaterMark.exe	55
PID 336 wrote to memory of 3568	336	WaterMark.exe	57
PID 336 wrote to memory of 3760	336	WaterMark.exe	58
PID 336 wrote to memory of 3892	336	WaterMark.exe	59
PID 336 wrote to memory of 3952	336	WaterMark.exe	60
PID 336 wrote to memory of 4032	336	WaterMark.exe	61
PID 336 wrote to memory of 3836	336	WaterMark.exe	62
PID 336 wrote to memory of 3120	336	WaterMark.exe	65
PID 336 wrote to memory of 4492	336	WaterMark.exe	77
PID 336 wrote to memory of 6000	336	WaterMark.exe	83
PID 336 wrote to memory of 3168	336	WaterMark.exe	84
PID 336 wrote to memory of 724	336	WaterMark.exe	88
PID 336 wrote to memory of 724	336	WaterMark.exe	88
PID 336 wrote to memory of 4020	336	WaterMark.exe	90
PID 336 wrote to memory of 2612	336	WaterMark.exe	91
PID 336 wrote to memory of 2612	336	WaterMark.exe	91
PID 336 wrote to memory of 3084	336	WaterMark.exe	92
PID 336 wrote to memory of 4628	336	WaterMark.exe	94
PID 336 wrote to memory of 4628	336	WaterMark.exe	94
PID 336 wrote to memory of 4652	336	WaterMark.exe	95
PID 336 wrote to memory of 4652	336	WaterMark.exe	95
PID 4628 wrote to memory of 3096	4628	iexplore.exe	96
PID 4628 wrote to memory of 3096	4628	iexplore.exe	96
PID 4628 wrote to memory of 3096	4628	iexplore.exe	96
PID 4652 wrote to memory of 3668	4652	iexplore.exe	97
PID 4652 wrote to memory of 3668	4652	iexplore.exe	97
PID 4652 wrote to memory of 3668	4652	iexplore.exe	97
PID 336 wrote to memory of 768	336	WaterMark.exe	8
PID 336 wrote to memory of 776	336	WaterMark.exe	9
PID 336 wrote to memory of 384	336	WaterMark.exe	13
PID 336 wrote to memory of 2988	336	WaterMark.exe	50
PID 336 wrote to memory of 3056	336	WaterMark.exe	52
PID 336 wrote to memory of 732	336	WaterMark.exe	53
PID 336 wrote to memory of 3384	336	WaterMark.exe	55

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:768

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:776

C:\Windows\system32\dwm.exe
"dwm.exe"
1⤵
PID:384

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2988

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:3056

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:732

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3384
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8622058cf310addf596f2d3e24e159e0.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5076
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8622058cf310addf596f2d3e24e159e0.dll,#1
    3⤵
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5048
  - - C:\Windows\SysWOW64\rundll32mgr.exe
      C:\Windows\SysWOW64\rundll32mgr.exe
      4⤵
      UAC bypass
      Windows security bypass
      Disables RegEdit via registry modification
      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 use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:208
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall set opmode disable
        5⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:724
      - C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        6⤵
        
        PID:4020
    - - C:\Program Files (x86)\Microsoft\WaterMark.exe
        
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        5⤵
        UAC bypass
        Windows security bypass
        Disables RegEdit via registry modification
        Executes dropped EXE
        Windows security modification
        Checks whether UAC is enabled
        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:336
      - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall set opmode disable
        6⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:2612
        
        C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        7⤵
        
        PID:3084
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        
        PID:1856
      - 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:4628
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4628 CREDAT:17410 /prefetch:2
        7⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3096
      - 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:4652
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4652 CREDAT:17410 /prefetch:2
        7⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3668
        
        C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall set opmode disable
        8⤵
        Modifies Windows Firewall
        
        PID:2652
        
        C:\Windows\SysWOW64\NOTEPAD.EXE
        
        "C:\Windows\system32\NOTEPAD.EXE"
        8⤵
        
        PID:3380
        
        C:\Windows\SysWOW64\NOTEPAD.EXE
        
        "C:\Windows\system32\NOTEPAD.EXE"
        8⤵
        
        PID:4764

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3568

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3760

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3892

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3952

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:3836

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3120

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:4492

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
1⤵
PID:6000

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:3168

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:5296

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3840

C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
1⤵
PID:3864

C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
1⤵
PID:5952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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