ramnit | 99ced5da45489dedc0dc9dc2eb6e902944e6e891e18b5f23f93b1114d9e06c5f

Windows Service

Disable or Modify System Firewall

T1562.004

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

Modifies security service 2 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	vybhewwg.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4"	vybhewwg.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\mpssvc\Start = "4"	vybhewwg.exe

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

UAC bypass 3 TTPs 1 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"	vybhewwg.exe

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

Modify Registry

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	rvtql1X1e
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	vybhewwg.exe

Executes dropped EXE 6 IoCs

pid	Process
1156	rvtql1X1e
2692	rvtql1X1e
632	vybhewwg.exe
2284	vybhewwg.exe
1984	vybhewwg.exe
764	vybhewwg.exe

Windows security modification 2 TTPs 6 IoCs

Disable or Modify Tools

Modify Registry

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

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

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

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1156 set thread context of 2692	1156	rvtql1X1e	85
PID 632 set thread context of 2284	632	vybhewwg.exe	114
PID 1984 set thread context of 764	1984	vybhewwg.exe	118

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2692-11-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2692-14-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2692-16-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2692-23-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2692-27-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2692-28-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2692-29-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2692-34-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2692-35-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2284-71-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/764-85-0x0000000000400000-0x0000000000436000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 11 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	rvtql1X1e
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vybhewwg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rvtql1X1e
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	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vybhewwg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vybhewwg.exe

Modifies Internet Explorer settings 1 TTPs 38 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1499574776"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145458"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "439163846"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31145458"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1499574776"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1501293917"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{84CD3E57-A9E5-11EF-AF2A-7ECF469E42CC} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1707544049"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1501293917"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145458"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145458"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31145458"	IEXPLORE.EXE

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F9CF55E-DB0C-4308-80B3-FF01591A82D7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\90ddad41a8b2676f513e82921d6068b7_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F9CF55E-DB0C-4308-80B3-FF01591A82D7}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F9CF55E-DB0C-4308-80B3-FF01591A82D7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F9CF55E-DB0C-4308-80B3-FF01591A82D7}\ = "CyberLink Media Cache"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F9CF55E-DB0C-4308-80B3-FF01591A82D7}\InprocServer32	regsvr32.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
652	Process not Found

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2692	rvtql1X1e
Token: SeDebugPrivilege	2692	rvtql1X1e
Token: SeSecurityPrivilege	2284	vybhewwg.exe
Token: SeSecurityPrivilege	764	vybhewwg.exe
Token: SeLoadDriverPrivilege	764	vybhewwg.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
524	IEXPLORE.EXE
524	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 15 IoCs

pid	Process
1156	rvtql1X1e
524	IEXPLORE.EXE
524	IEXPLORE.EXE
1124	IEXPLORE.EXE
1124	IEXPLORE.EXE
1124	IEXPLORE.EXE
1124	IEXPLORE.EXE
524	IEXPLORE.EXE
524	IEXPLORE.EXE
4420	IEXPLORE.EXE
4420	IEXPLORE.EXE
4420	IEXPLORE.EXE
4420	IEXPLORE.EXE
632	vybhewwg.exe
1984	vybhewwg.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 2844	1792	regsvr32.exe	83
PID 1792 wrote to memory of 2844	1792	regsvr32.exe	83
PID 1792 wrote to memory of 2844	1792	regsvr32.exe	83
PID 2844 wrote to memory of 1156	2844	regsvr32.exe	84
PID 2844 wrote to memory of 1156	2844	regsvr32.exe	84
PID 2844 wrote to memory of 1156	2844	regsvr32.exe	84
PID 1156 wrote to memory of 2692	1156	rvtql1X1e	85
PID 1156 wrote to memory of 2692	1156	rvtql1X1e	85
PID 1156 wrote to memory of 2692	1156	rvtql1X1e	85
PID 1156 wrote to memory of 2692	1156	rvtql1X1e	85
PID 1156 wrote to memory of 2692	1156	rvtql1X1e	85
PID 1156 wrote to memory of 2692	1156	rvtql1X1e	85
PID 1156 wrote to memory of 2692	1156	rvtql1X1e	85
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 4852	2692	rvtql1X1e	86
PID 2692 wrote to memory of 5052	2692	rvtql1X1e	97
PID 2692 wrote to memory of 5052	2692	rvtql1X1e	97
PID 2692 wrote to memory of 5052	2692	rvtql1X1e	97
PID 5052 wrote to memory of 524	5052	iexplore.exe	98
PID 5052 wrote to memory of 524	5052	iexplore.exe	98
PID 524 wrote to memory of 1124	524	IEXPLORE.EXE	100
PID 524 wrote to memory of 1124	524	IEXPLORE.EXE	100
PID 524 wrote to memory of 1124	524	IEXPLORE.EXE	100
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 1316	2692	rvtql1X1e	105
PID 2692 wrote to memory of 744	2692	rvtql1X1e	108
PID 2692 wrote to memory of 744	2692	rvtql1X1e	108
PID 2692 wrote to memory of 744	2692	rvtql1X1e	108
PID 744 wrote to memory of 1996	744	iexplore.exe	109
PID 744 wrote to memory of 1996	744	iexplore.exe	109
PID 524 wrote to memory of 4420	524	IEXPLORE.EXE	110
PID 524 wrote to memory of 4420	524	IEXPLORE.EXE	110
PID 524 wrote to memory of 4420	524	IEXPLORE.EXE	110
PID 2692 wrote to memory of 632	2692	rvtql1X1e	112
PID 2692 wrote to memory of 632	2692	rvtql1X1e	112
PID 2692 wrote to memory of 632	2692	rvtql1X1e	112
PID 632 wrote to memory of 2284	632	vybhewwg.exe	114
PID 632 wrote to memory of 2284	632	vybhewwg.exe	114
PID 632 wrote to memory of 2284	632	vybhewwg.exe	114
PID 632 wrote to memory of 2284	632	vybhewwg.exe	114
PID 632 wrote to memory of 2284	632	vybhewwg.exe	114
PID 632 wrote to memory of 2284	632	vybhewwg.exe	114
PID 632 wrote to memory of 2284	632	vybhewwg.exe	114
PID 2284 wrote to memory of 3012	2284	vybhewwg.exe	115
PID 2284 wrote to memory of 3012	2284	vybhewwg.exe	115
PID 2284 wrote to memory of 3012	2284	vybhewwg.exe	115
PID 3012 wrote to memory of 1984	3012	cmd.exe	117
PID 3012 wrote to memory of 1984	3012	cmd.exe	117

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

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

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\90ddad41a8b2676f513e82921d6068b7_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\90ddad41a8b2676f513e82921d6068b7_JaffaCakes118.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Users\Admin\AppData\Local\Temp\rvtql1X1e
    "rvtql1X1e"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1156
  - - C:\Users\Admin\AppData\Local\Temp\rvtql1X1e
      "rvtql1X1e"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2692
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:4852
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:5052
      - 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:524
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:524 CREDAT:17410 /prefetch:2
        7⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1124
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:524 CREDAT:17416 /prefetch:2
        7⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4420
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:1316
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:744
      - C:\Program Files\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
        6⤵
        Modifies Internet Explorer settings
        
        PID:1996
    - - C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe
        
        "C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe" elevate
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:632
      - C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe
        
        "C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe" elevate
        6⤵
        Checks computer location settings
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2284
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe"" admin
        7⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3012
        
        C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe
        
        "C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe" admin
        8⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:1984
        
        C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe
        
        "C:\Users\Admin\AppData\Local\Temp\vybhewwg.exe" admin
        9⤵
        Modifies firewall policy service
        Modifies security service
        UAC bypass
        Windows security bypass
        Executes dropped EXE
        Windows security modification
        Checks whether UAC is enabled
        Suspicious use of AdjustPrivilegeToken
        System policy modification
        
        PID:764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

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