Malware Analysis Report

2025-08-06 00:04

Sample ID 240223-pdcl5sfe5z
Target Optimizer-16.4.exe
SHA256 f4775567ca9941b4fb3224d97b0741ae669eedfcb0d8b3c71106b21bdb1aee28
Tags
discovery evasion persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f4775567ca9941b4fb3224d97b0741ae669eedfcb0d8b3c71106b21bdb1aee28

Threat Level: Known bad

The file Optimizer-16.4.exe was found to be: Known bad.

Malicious Activity Summary

discovery evasion persistence

Modifies visibility of file extensions in Explorer

Sets file execution options in registry

Modifies file permissions

Checks computer location settings

Legitimate hosting services abused for malware hosting/C2

Launches sc.exe

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Uses Task Scheduler COM API

Suspicious use of AdjustPrivilegeToken

Modifies Internet Explorer Phishing Filter

Modifies system certificate store

Modifies registry class

Disables Windows logging functionality

System policy modification

Modifies Control Panel

Modifies data under HKEY_USERS

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-23 12:12

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-23 12:12

Reported

2024-02-23 12:13

Platform

win10v2004-20240221-en

Max time kernel

79s

Max time network

82s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe"

Signatures

Modifies visibility of file extensions in Explorer

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Sets file execution options in registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CompatTelRunner.exe\Debugger = "%windir%\\System32\\taskkill.exe" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DeviceCensus.exe C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DeviceCensus.exe\Debugger = "%windir%\\System32\\taskkill.exe" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CompatTelRunner.exe C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\system32\icacls.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Launches sc.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\sc.exe N/A

Enumerates physical storage devices

Disables Windows logging functionality

Modifies Control Panel

evasion
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Mouse\MouseHoverTime = "0" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Desktop\AutoEndTasks = "1" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Desktop\WaitToKillAppTimeout = "2000" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Desktop\LowLevelHooksTimeout = "1000" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Desktop\MenuShowDelay = "0" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Desktop\HungAppTimeout = "1000" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Accessibility\StickyKeys\Flags = "506" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Accessibility\Keyboard Response\Flags = "122" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\Accessibility\ToggleKeys\Flags = "58" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Modifies Internet Explorer Phishing Filter

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Control Panel\Accessibility\Keyboard Response\Flags = "122" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "187" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" C:\Windows\system32\LogonUI.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Control Panel\Accessibility\StickyKeys\Flags = "506" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" C:\Windows\system32\LogonUI.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Control Panel\Accessibility\ToggleKeys\Flags = "58" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" C:\Windows\system32\LogonUI.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects\shellex\ContextMenuHandlers\Copy To C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects\shellex\ContextMenuHandlers\Copy To\ = "{C2FBB630-2971-11D1-A18C-00C04FD75D13}" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects\shellex\ContextMenuHandlers\Move To C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects\shellex\ContextMenuHandlers\Move To\ = "{C2FBB631-2971-11D1-A18C-00C04FD75D13}" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\shutdown.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\shutdown.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\LogonUI.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2668 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\System32\cmd.exe
PID 2668 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\System32\cmd.exe
PID 4372 wrote to memory of 976 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\sc.exe
PID 4372 wrote to memory of 976 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\sc.exe
PID 2668 wrote to memory of 1564 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\System32\cmd.exe
PID 2668 wrote to memory of 1564 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\System32\cmd.exe
PID 1564 wrote to memory of 3132 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 1564 wrote to memory of 3132 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 2668 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\system32\cmd.exe
PID 2668 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\system32\cmd.exe
PID 4956 wrote to memory of 4272 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 4272 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2296 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2296 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2248 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2248 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3956 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3956 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1860 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1860 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1472 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1472 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1616 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1616 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3388 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3388 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3484 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3484 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3584 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3584 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2288 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2288 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 5068 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 5068 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 4760 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 4760 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1656 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1656 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 4444 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 4444 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3892 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3892 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 4948 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 4948 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3736 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3736 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1588 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 1588 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2044 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2044 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2020 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2020 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2176 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2176 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 644 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 644 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3948 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3948 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3384 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 3384 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 220 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 220 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2164 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe
PID 4956 wrote to memory of 2164 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\schtasks.exe

System policy modification

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Attachments\ScanWithAntiVirus = "1" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe

"C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C sc config "RemoteRegistry" start= disabled

C:\Windows\system32\sc.exe

sc config "RemoteRegistry" start= disabled

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C icacls C:\ProgramData\Microsoft\Diagnosis\ETLLogs\AutoLogger /deny SYSTEM:`(OI`)`(CI`)F

C:\Windows\system32\icacls.exe

icacls C:\ProgramData\Microsoft\Diagnosis\ETLLogs\AutoLogger /deny SYSTEM:`(OI`)`(CI`)F

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\ProgramData\Optimizer\Required\DisableTelemetryTasks.bat""

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Customer Experience Improvement Program\Consolidator"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Customer Experience Improvement Program\Consolidator" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Customer Experience Improvement Program\BthSQM"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Customer Experience Improvement Program\BthSQM" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Customer Experience Improvement Program\KernelCeipTask"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Customer Experience Improvement Program\KernelCeipTask" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Customer Experience Improvement Program\UsbCeip"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Customer Experience Improvement Program\UsbCeip" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Customer Experience Improvement Program\Uploader"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Customer Experience Improvement Program\Uploader" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Application Experience\Microsoft Compatibility Appraiser"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Application Experience\Microsoft Compatibility Appraiser" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Application Experience\ProgramDataUpdater"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Application Experience\ProgramDataUpdater" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Application Experience\StartupAppTask"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Application Experience\StartupAppTask" /disable"

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticResolver"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticResolver" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Power Efficiency Diagnostics\AnalyzeSystem"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Power Efficiency Diagnostics\AnalyzeSystem" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Shell\FamilySafetyMonitor"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Shell\FamilySafetyMonitor" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Shell\FamilySafetyRefresh"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Shell\FamilySafetyRefresh" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Shell\FamilySafetyUpload"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Shell\FamilySafetyUpload" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Autochk\Proxy"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Autochk\Proxy" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Maintenance\WinSAT"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Maintenance\WinSAT" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Application Experience\AitAgent"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Application Experience\AitAgent" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Windows Error Reporting\QueueReporting"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Windows Error Reporting\QueueReporting" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\CloudExperienceHost\CreateObjectTask"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\CloudExperienceHost\CreateObjectTask" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\DiskFootprint\Diagnostics"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\DiskFootprint\Diagnostics" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\FileHistory\File History (maintenance mode)"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\FileHistory\File History (maintenance mode)" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\PI\Sqm-Tasks"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\PI\Sqm-Tasks" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\NetTrace\GatherNetworkInfo"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\NetTrace\GatherNetworkInfo" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\AppID\SmartScreenSpecific"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\AppID\SmartScreenSpecific" /disable

C:\Windows\system32\schtasks.exe

schtasks /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /Disable

C:\Windows\system32\schtasks.exe

schtasks /Change /TN "\Microsoft\Windows\Time Synchronization\ForceSynchronizeTime" /Disable

C:\Windows\system32\schtasks.exe

schtasks /Change /TN "\Microsoft\Windows\Time Synchronization\SynchronizeTime" /Disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\HelloFace\FODCleanupTask"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\HelloFace\FODCleanupTask" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Feedback\Siuf\DmClient"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Feedback\Siuf\DmClient" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Feedback\Siuf\DmClientOnScenarioDownload"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Feedback\Siuf\DmClientOnScenarioDownload" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Application Experience\PcaPatchDbTask"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Application Experience\PcaPatchDbTask" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Device Information\Device"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Device Information\Device" /disable

C:\Windows\system32\schtasks.exe

schtasks /end /tn "\Microsoft\Windows\Device Information\Device User"

C:\Windows\system32\schtasks.exe

schtasks /change /tn "\Microsoft\Windows\Device Information\Device User" /disable

C:\Windows\System32\shutdown.exe

"C:\Windows\System32\shutdown.exe" /r /t 0

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa39bb055 /state1:0x41c64e6d

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 200.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.108.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 133.108.199.185.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp

Files

memory/2668-0-0x000001A2C1B80000-0x000001A2C1DD8000-memory.dmp

memory/2668-1-0x00007FFD03160000-0x00007FFD03C21000-memory.dmp

memory/2668-2-0x000001A2DC260000-0x000001A2DC312000-memory.dmp

memory/2668-3-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-24-0x000001A2DCA40000-0x000001A2DCAB6000-memory.dmp

memory/2668-25-0x000001A2DC310000-0x000001A2DC332000-memory.dmp

memory/2668-27-0x000001A2DC3C0000-0x000001A2DC3DE000-memory.dmp

memory/2668-28-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-30-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-29-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-31-0x00007FFD03160000-0x00007FFD03C21000-memory.dmp

memory/2668-32-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_joxftp02.ez0.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2668-48-0x000001A2E0330000-0x000001A2E0346000-memory.dmp

memory/2668-49-0x000001A2E0350000-0x000001A2E035A000-memory.dmp

memory/2668-50-0x000001A2E03C0000-0x000001A2E03E6000-memory.dmp

memory/2668-66-0x000001A2E0BC0000-0x000001A2E0BD2000-memory.dmp

memory/2668-67-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-68-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-69-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-70-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-72-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-73-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-74-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-75-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

memory/2668-76-0x000001A2DC430000-0x000001A2DC440000-memory.dmp

C:\ProgramData\Optimizer\Required\DisableTelemetryTasks.bat

MD5 cb03c3144aaff8fb1c3497c403c2b60f
SHA1 ba4380abb20eaaeb638cdb142452def731817212
SHA256 abd9b7c86e9186c4af174c2a630629588ec89a716d3ff04d357d2610e490c8d3
SHA512 d76cf1fa9662bbafc931eb3720213e30a99de34ae0d92ff90a52a761555fc934fc9822c6beeddb882fabf990b30b17e8bf35b8acbc9d9898618d38fc259e9660

C:\ProgramData\Optimizer\Optimizer.json

MD5 6b67d4971607b5050f86886ce9eeac6e
SHA1 11e812da278994cef6c50171c7494379dd34057a
SHA256 1cf9b8c1ab1a3f3b0535e9176b3434793364ad4cd5a40175e390184f1fe5f60c
SHA512 6b63200bb2773792c652496a6a1899ad6b58450a467b62294aef699cd2b3e75aa780012e6eb6bfafb62ab3aeeca2dc2084557718b52037852cf91a5ff388bb4c

memory/2668-84-0x00007FFD03160000-0x00007FFD03C21000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-23 12:12

Reported

2024-02-23 12:13

Platform

win7-20240221-en

Max time kernel

48s

Max time network

50s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe"

Signatures

Modifies visibility of file extensions in Explorer

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Launches sc.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\sc.exe N/A

Enumerates physical storage devices

Modifies Control Panel

evasion
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Control Panel\Desktop\WaitToKillAppTimeout = "2000" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Control Panel\Desktop\LowLevelHooksTimeout = "1000" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Control Panel\Desktop\MenuShowDelay = "0" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Control Panel\Mouse\MouseHoverTime = "0" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Control Panel\Desktop\AutoEndTasks = "1" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Control Panel\Desktop\HungAppTimeout = "1000" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects\shellex\ContextMenuHandlers\Move To C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects\shellex\ContextMenuHandlers\Move To\ = "{C2FBB631-2971-11D1-A18C-00C04FD75D13}" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects\shellex\ContextMenuHandlers\Copy To C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AllFilesystemObjects\shellex\ContextMenuHandlers\Copy To\ = "{C2FBB630-2971-11D1-A18C-00C04FD75D13}" C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2184 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\System32\cmd.exe
PID 2184 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\System32\cmd.exe
PID 2184 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe C:\Windows\System32\cmd.exe
PID 2924 wrote to memory of 3068 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\sc.exe
PID 2924 wrote to memory of 3068 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\sc.exe
PID 2924 wrote to memory of 3068 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\sc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe

"C:\Users\Admin\AppData\Local\Temp\Optimizer-16.4.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C sc config "RemoteRegistry" start= disabled

C:\Windows\system32\sc.exe

sc config "RemoteRegistry" start= disabled

Network

Country Destination Domain Proto
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.108.133:443 raw.githubusercontent.com tcp

Files

memory/2184-0-0x0000000000CE0000-0x0000000000F38000-memory.dmp

memory/2184-1-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

memory/2184-2-0x000000001B050000-0x000000001B102000-memory.dmp

memory/2184-3-0x0000000002480000-0x0000000002500000-memory.dmp

memory/2184-25-0x0000000002480000-0x0000000002500000-memory.dmp

memory/2184-26-0x0000000002480000-0x0000000002500000-memory.dmp

C:\ProgramData\Optimizer\Optimizer.log

MD5 bb04e9af50309df0fdff67ea9cc5027c
SHA1 ed67ba3c74f7661f7aa8540b7f0c2049f3ef937b
SHA256 e1adfc78d8c11e74b5c7f001fa6b1b85b65ecdede8dd1bc79296e389e1e23506
SHA512 a055305978fadffbd4595dfbc3f328669df064c01d6621af0c1421e8e29f5a23a279820fe39eec56c52dcfa2f7a5205cd54cec5d05c75f77c9fc6bd90b647eeb

memory/2184-49-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

memory/2184-50-0x0000000002480000-0x0000000002500000-memory.dmp

memory/2184-51-0x0000000002480000-0x0000000002500000-memory.dmp

memory/2184-52-0x0000000002480000-0x0000000002500000-memory.dmp

memory/2184-53-0x0000000002480000-0x0000000002500000-memory.dmp

memory/2184-54-0x0000000002480000-0x0000000002500000-memory.dmp

memory/2184-55-0x0000000002480000-0x0000000002500000-memory.dmp

C:\ProgramData\Optimizer\Optimizer.json

MD5 6b67d4971607b5050f86886ce9eeac6e
SHA1 11e812da278994cef6c50171c7494379dd34057a
SHA256 1cf9b8c1ab1a3f3b0535e9176b3434793364ad4cd5a40175e390184f1fe5f60c
SHA512 6b63200bb2773792c652496a6a1899ad6b58450a467b62294aef699cd2b3e75aa780012e6eb6bfafb62ab3aeeca2dc2084557718b52037852cf91a5ff388bb4c

memory/2184-58-0x0000000002480000-0x0000000002500000-memory.dmp

memory/2184-59-0x000007FEF5690000-0x000007FEF607C000-memory.dmp