Malware Analysis Report

2025-06-16 06:23

Sample ID 230906-v7ld2aab98
Target WinRAR_JC.exe
SHA256 82e6b71b99a6ec602cfbdc00e0bbaf34c719d7b6879b6e384004886d491ad45a
Tags
chaos evasion persistence ransomware spyware stealer
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

82e6b71b99a6ec602cfbdc00e0bbaf34c719d7b6879b6e384004886d491ad45a

Threat Level: Known bad

The file WinRAR_JC.exe was found to be: Known bad.

Malicious Activity Summary

chaos evasion persistence ransomware spyware stealer

Chaos

Chaos Ransomware

Chaos family

Deletes shadow copies

Disables Task Manager via registry modification

Deletes backup catalog

Drops startup file

Reads user/profile data of web browsers

Checks computer location settings

Executes dropped EXE

Drops desktop.ini file(s)

Adds Run key to start application

Sets desktop wallpaper using registry

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: AddClipboardFormatListener

Interacts with shadow copies

Modifies registry class

Uses Volume Shadow Copy service COM API

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-06 17:37

Signatures

Chaos Ransomware

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

Chaos family

chaos

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-06 17:37

Reported

2023-09-06 17:40

Platform

win10v2004-20230831-en

Max time kernel

144s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

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

Deletes shadow copies

ransomware

Deletes backup catalog

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

Disables Task Manager via registry modification

evasion

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4272677097-406801653-1594978504-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-4272677097-406801653-1594978504-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NOTE!.txt C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4272677097-406801653-1594978504-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\WinRAR.exe" C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Links\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\AccountPictures\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Music\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\OneDrive\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Favorites\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\3D Objects\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Contacts\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Libraries\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Music\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Application Shortcuts\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Saved Games\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification F:\$RECYCLE.BIN\S-1-5-21-4272677097-406801653-1594978504-1000\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\StartUp\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn1\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Searches\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Downloads\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4272677097-406801653-1594978504-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wp18i6t2u.jpg" C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Enumerates physical storage devices

Checks SCSI registry key(s)

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName C:\Windows\System32\vds.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 C:\Windows\System32\vds.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName C:\Windows\System32\vds.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 C:\Windows\System32\vds.exe N/A

Interacts with shadow copies

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

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-4272677097-406801653-1594978504-1000_Classes\Local Settings C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\wbengine.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\wbengine.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\wbengine.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4924 wrote to memory of 1416 N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe C:\Users\Admin\AppData\Roaming\WinRAR.exe
PID 4924 wrote to memory of 1416 N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe C:\Users\Admin\AppData\Roaming\WinRAR.exe
PID 1416 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 1416 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 2004 wrote to memory of 5092 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2004 wrote to memory of 5092 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2004 wrote to memory of 1296 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2004 wrote to memory of 1296 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 1416 wrote to memory of 1912 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 1416 wrote to memory of 1912 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 1912 wrote to memory of 3572 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 1912 wrote to memory of 3572 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 1416 wrote to memory of 5760 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\system32\NOTEPAD.EXE
PID 1416 wrote to memory of 5760 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\system32\NOTEPAD.EXE

Uses Task Scheduler COM API

persistence

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe

"C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe"

C:\Users\Admin\AppData\Roaming\WinRAR.exe

"C:\Users\Admin\AppData\Roaming\WinRAR.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete

C:\Windows\system32\vssadmin.exe

vssadmin delete shadows /all /quiet

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\System32\Wbem\WMIC.exe

wmic shadowcopy delete

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet

C:\Windows\system32\wbadmin.exe

wbadmin delete catalog -quiet

C:\Windows\system32\wbengine.exe

"C:\Windows\system32\wbengine.exe"

C:\Windows\System32\vdsldr.exe

C:\Windows\System32\vdsldr.exe -Embedding

C:\Windows\System32\vds.exe

C:\Windows\System32\vds.exe

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\NOTE!.txt

Network

Country Destination Domain Proto
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 126.179.238.8.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 140.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 9.179.89.13.in-addr.arpa udp

Files

memory/4924-0-0x0000000000B40000-0x0000000000B88000-memory.dmp

memory/4924-1-0x00007FFBEFD20000-0x00007FFBF07E1000-memory.dmp

memory/4924-2-0x000000001B810000-0x000000001B820000-memory.dmp

C:\Users\Admin\AppData\Roaming\WinRAR.exe

MD5 14ea366be5cb691078be2c302590f435
SHA1 84e562bb99249a58849f6f82b29a7746dd144900
SHA256 82e6b71b99a6ec602cfbdc00e0bbaf34c719d7b6879b6e384004886d491ad45a
SHA512 9be5097295010fa04e04fcae578b19ab43935b09a70d8b31a038fd1ef7ed89dcd9143b82400e8d31913bf32a7a18628557dfaa1f4d37c1e7c8062d7a7368afb9

C:\Users\Admin\AppData\Roaming\WinRAR.exe

MD5 14ea366be5cb691078be2c302590f435
SHA1 84e562bb99249a58849f6f82b29a7746dd144900
SHA256 82e6b71b99a6ec602cfbdc00e0bbaf34c719d7b6879b6e384004886d491ad45a
SHA512 9be5097295010fa04e04fcae578b19ab43935b09a70d8b31a038fd1ef7ed89dcd9143b82400e8d31913bf32a7a18628557dfaa1f4d37c1e7c8062d7a7368afb9

C:\Users\Admin\AppData\Roaming\WinRAR.exe

MD5 14ea366be5cb691078be2c302590f435
SHA1 84e562bb99249a58849f6f82b29a7746dd144900
SHA256 82e6b71b99a6ec602cfbdc00e0bbaf34c719d7b6879b6e384004886d491ad45a
SHA512 9be5097295010fa04e04fcae578b19ab43935b09a70d8b31a038fd1ef7ed89dcd9143b82400e8d31913bf32a7a18628557dfaa1f4d37c1e7c8062d7a7368afb9

memory/4924-15-0x00007FFBEFD20000-0x00007FFBF07E1000-memory.dmp

memory/1416-16-0x00007FFBEFD20000-0x00007FFBF07E1000-memory.dmp

memory/1416-17-0x000000001B3A0000-0x000000001B3B0000-memory.dmp

C:\Users\Admin\3D Objects\NOTE!.txt

MD5 7cff3b94ef1413349cdf9d4742f9cd77
SHA1 0569d834acc4a41e0b47bc1d03dcf27430106096
SHA256 bb6cdcdbb8d8b17243cce8bc7c9d7eee1872b63313640e5d63c63619712ddd8d
SHA512 1425864a3944742df1f4f849455c3224e2ee281b4c19dbc46af180efaaa1fb35dc14ef047faa02ba92e3d8b5a33ad60cc65c7b4ea9e1182a5b91d01e9edd2873

C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Fax Recipient.lnk

MD5 d1457b72c3fb323a2671125aef3eab5d
SHA1 5bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA256 8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512 ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WinRAR_JC.exe.log

MD5 baf55b95da4a601229647f25dad12878
SHA1 abc16954ebfd213733c4493fc1910164d825cac8
SHA256 ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
SHA512 24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

C:\Users\Admin\AppData\Roaming\NOTE!.txt

MD5 7cff3b94ef1413349cdf9d4742f9cd77
SHA1 0569d834acc4a41e0b47bc1d03dcf27430106096
SHA256 bb6cdcdbb8d8b17243cce8bc7c9d7eee1872b63313640e5d63c63619712ddd8d
SHA512 1425864a3944742df1f4f849455c3224e2ee281b4c19dbc46af180efaaa1fb35dc14ef047faa02ba92e3d8b5a33ad60cc65c7b4ea9e1182a5b91d01e9edd2873

memory/1416-1187-0x00007FFBEFD20000-0x00007FFBF07E1000-memory.dmp

memory/1416-1188-0x000000001B3A0000-0x000000001B3B0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-06 17:37

Reported

2023-09-06 17:40

Platform

win7-20230831-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

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

Deletes shadow copies

ransomware

Deletes backup catalog

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

Disables Task Manager via registry modification

evasion

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NOTE!.txt C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\WinRAR.exe" C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\47XKHVXL\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\498NH330\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\KRO4ET95\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Downloads\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3513876443-2771975297-1923446376-1000\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\74K2RCMQ\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Music\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\O8C6W9KQ\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Libraries\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Links\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Favorites\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\3BNCR2DX\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\7QQDM6BV\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Saved Games\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Recorded TV\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Searches\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Music\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Contacts\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\Downloads\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Public\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dgjjbeb8m.jpg" C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Enumerates physical storage devices

Interacts with shadow copies

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

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\wbengine.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\wbengine.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\wbengine.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2408 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe C:\Users\Admin\AppData\Roaming\WinRAR.exe
PID 2408 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe C:\Users\Admin\AppData\Roaming\WinRAR.exe
PID 2408 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe C:\Users\Admin\AppData\Roaming\WinRAR.exe
PID 2692 wrote to memory of 828 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 2692 wrote to memory of 828 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 2692 wrote to memory of 828 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 828 wrote to memory of 2656 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 828 wrote to memory of 2656 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 828 wrote to memory of 2656 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 828 wrote to memory of 2404 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 828 wrote to memory of 2404 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 828 wrote to memory of 2404 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2692 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 2692 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 2692 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\System32\cmd.exe
PID 2964 wrote to memory of 2216 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 2964 wrote to memory of 2216 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 2964 wrote to memory of 2216 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 2692 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\system32\NOTEPAD.EXE
PID 2692 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\system32\NOTEPAD.EXE
PID 2692 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Roaming\WinRAR.exe C:\Windows\system32\NOTEPAD.EXE

Uses Task Scheduler COM API

persistence

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe

"C:\Users\Admin\AppData\Local\Temp\WinRAR_JC.exe"

C:\Users\Admin\AppData\Roaming\WinRAR.exe

"C:\Users\Admin\AppData\Roaming\WinRAR.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete

C:\Windows\system32\vssadmin.exe

vssadmin delete shadows /all /quiet

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\System32\Wbem\WMIC.exe

wmic shadowcopy delete

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet

C:\Windows\system32\wbadmin.exe

wbadmin delete catalog -quiet

C:\Windows\system32\wbengine.exe

"C:\Windows\system32\wbengine.exe"

C:\Windows\System32\vdsldr.exe

C:\Windows\System32\vdsldr.exe -Embedding

C:\Windows\System32\vds.exe

C:\Windows\System32\vds.exe

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\NOTE!.txt

Network

N/A

Files

memory/2408-0-0x00000000011E0000-0x0000000001228000-memory.dmp

memory/2408-1-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

memory/2408-2-0x000000001AAB0000-0x000000001AB30000-memory.dmp

C:\Users\Admin\AppData\Roaming\WinRAR.exe

MD5 14ea366be5cb691078be2c302590f435
SHA1 84e562bb99249a58849f6f82b29a7746dd144900
SHA256 82e6b71b99a6ec602cfbdc00e0bbaf34c719d7b6879b6e384004886d491ad45a
SHA512 9be5097295010fa04e04fcae578b19ab43935b09a70d8b31a038fd1ef7ed89dcd9143b82400e8d31913bf32a7a18628557dfaa1f4d37c1e7c8062d7a7368afb9

C:\Users\Admin\AppData\Roaming\WinRAR.exe

MD5 14ea366be5cb691078be2c302590f435
SHA1 84e562bb99249a58849f6f82b29a7746dd144900
SHA256 82e6b71b99a6ec602cfbdc00e0bbaf34c719d7b6879b6e384004886d491ad45a
SHA512 9be5097295010fa04e04fcae578b19ab43935b09a70d8b31a038fd1ef7ed89dcd9143b82400e8d31913bf32a7a18628557dfaa1f4d37c1e7c8062d7a7368afb9

memory/2692-8-0x00000000013B0000-0x00000000013F8000-memory.dmp

memory/2692-10-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

memory/2408-9-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

memory/2692-11-0x0000000000C20000-0x0000000000CA0000-memory.dmp

C:\ProgramData\Adobe\Updater6\NOTE!.txt

MD5 7cff3b94ef1413349cdf9d4742f9cd77
SHA1 0569d834acc4a41e0b47bc1d03dcf27430106096
SHA256 bb6cdcdbb8d8b17243cce8bc7c9d7eee1872b63313640e5d63c63619712ddd8d
SHA512 1425864a3944742df1f4f849455c3224e2ee281b4c19dbc46af180efaaa1fb35dc14ef047faa02ba92e3d8b5a33ad60cc65c7b4ea9e1182a5b91d01e9edd2873

C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Notepad.lnk

MD5 d1457b72c3fb323a2671125aef3eab5d
SHA1 5bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA256 8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512 ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

C:\Users\Admin\AppData\Roaming\NOTE!.txt

MD5 7cff3b94ef1413349cdf9d4742f9cd77
SHA1 0569d834acc4a41e0b47bc1d03dcf27430106096
SHA256 bb6cdcdbb8d8b17243cce8bc7c9d7eee1872b63313640e5d63c63619712ddd8d
SHA512 1425864a3944742df1f4f849455c3224e2ee281b4c19dbc46af180efaaa1fb35dc14ef047faa02ba92e3d8b5a33ad60cc65c7b4ea9e1182a5b91d01e9edd2873

memory/2692-876-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp