1473050bbfaaccabbc5429d25b37bbeaf0d73eb39706e9b01d88494704447ded

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\Ransomware\\Annabelle Ransomware\\716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

Modifies Windows Defender Real-time Protection settings 3 TTPs 2 IoCs

evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Disables RegEdit via registry modification 2 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

Disables Task Manager via registry modification
evasion
Disables use of System Restore points 1 TTPs
evasion

Inhibit System Recovery
T1490

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

Disable or Modify System Firewall

T1562.004

pid	Process
4920	NetSh.exe

Sets file execution options in registry 2 TTPs 64 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\firefox.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\yandex.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\dllhost.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rundll.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ksuser.dll\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Autoruns.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sethc.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\iexplore.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCuiL.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rundll32.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DCIMAN32.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\shellstyle.dll	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mmc.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Autoruns64.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Autoruns64.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sethc.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mspaint.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\url.dll	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad++.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DBGHELP.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DBGHELP.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\wmplayer.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mpg4dmod.dll	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DCIMAN32.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\logoff.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\microsoftedgecp.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\attrib.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cabinet.dll	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\chkdsk.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\control.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\opera.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\microsoftedgecp.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\systemexplorer.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\dllhost.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cabinet.dll\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\microsoftedge.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rundll32.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\logoff.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\bcdedit.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rasman.dll	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mpg4dmod.dll\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\recoverydrive.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\opera.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Autoruns.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\attrib.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\chkdsk.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ksuser.dll	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mydocs.dll	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\control.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskkill.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\powershell.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\yandex.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\firefox.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad++.exe	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCuiL.exe\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\gpedit.msc\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\shellstyle.dll\Debugger = "RIP"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\usbui.dll	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateBackup = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\Ransomware\\Annabelle Ransomware\\716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateBackup = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\Ransomware\\Annabelle Ransomware\\716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\UpdateBackup = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows\\Ransomware\\Annabelle Ransomware\\716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

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

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 3 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
2656	vssadmin.exe
1968	vssadmin.exe
376	vssadmin.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "109"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeBackupPrivilege	3772	vssvc.exe
Token: SeRestorePrivilege	3772	vssvc.exe
Token: SeAuditPrivilege	3772	vssvc.exe
Token: SeShutdownPrivilege	848	shutdown.exe
Token: SeRemoteShutdownPrivilege	848	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4964	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5080 wrote to memory of 376	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	98
PID 5080 wrote to memory of 376	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	98
PID 5080 wrote to memory of 2656	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	99
PID 5080 wrote to memory of 2656	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	99
PID 5080 wrote to memory of 1968	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	100
PID 5080 wrote to memory of 1968	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	100
PID 5080 wrote to memory of 4920	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	102
PID 5080 wrote to memory of 4920	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	102
PID 5080 wrote to memory of 848	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	111
PID 5080 wrote to memory of 848	5080	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe	111

System policy modification 1 TTPs 9 IoCs

evasion

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoControlPanel = "1"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun = "1"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\WindowsDefenderMAJ = "1"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1"	716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\Windows\Ransomware\Annabelle Ransomware\716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe
"C:\Users\Admin\AppData\Local\Temp\Windows\Ransomware\Annabelle Ransomware\716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies Windows Defender Real-time Protection settings
- UAC bypass
- Disables RegEdit via registry modification
- Sets file execution options in registry
- Checks computer location settings
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- System policy modification
PID:5080
- C:\Windows\SYSTEM32\vssadmin.exe
  vssadmin delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:376
- C:\Windows\SYSTEM32\vssadmin.exe
  vssadmin delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:2656
- C:\Windows\SYSTEM32\vssadmin.exe
  vssadmin delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:1968
- C:\Windows\SYSTEM32\NetSh.exe
  NetSh Advfirewall set allprofiles state off
  2⤵
  - Modifies Windows Firewall
  PID:4920
- C:\Windows\System32\shutdown.exe
  "C:\Windows\System32\shutdown.exe" -r -t 00 -f
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:848

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3772

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3942055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Winlogon Helper DLL

T1547.004

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

T1562.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry