Malware Analysis Report

2025-01-22 20:51

Sample ID 241225-cebp1stnfx
Target test.exe
SHA256 06918af465e607aa81a46042c24e6a8c45d7c983f33ee621caad6b25464dd27a
Tags
avoslocker defense_evasion discovery evasion execution impact ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

06918af465e607aa81a46042c24e6a8c45d7c983f33ee621caad6b25464dd27a

Threat Level: Known bad

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

Malicious Activity Summary

avoslocker defense_evasion discovery evasion execution impact ransomware

Avoslocker Ransomware

Avoslocker family

Deletes shadow copies

Modifies boot configuration data using bcdedit

Renames multiple (4065) files with added filename extension

Renames multiple (10388) files with added filename extension

Drops desktop.ini file(s)

Enumerates connected drives

Sets desktop wallpaper using registry

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Command and Scripting Interpreter: PowerShell

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Opens file in notepad (likely ransom note)

Interacts with shadow copies

Suspicious behavior: EnumeratesProcesses

Uses Volume Shadow Copy service COM API

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-25 01:58

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-25 01:58

Reported

2024-12-25 02:01

Platform

win7-20240903-en

Max time kernel

117s

Max time network

117s

Command Line

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

Signatures

Avoslocker Ransomware

ransomware avoslocker

Avoslocker family

avoslocker

Deletes shadow copies

ransomware defense_evasion impact execution

Modifies boot configuration data using bcdedit

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

Renames multiple (10388) files with added filename extension

ransomware

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI C:\Users\Admin\AppData\Local\Temp\test.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\test.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\606245847.png" C:\Windows\system32\reg.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\es-ES\css\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Windows Media Player\Network Sharing\wmpnss_bw120.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\reflect.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18193_.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0301432.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\en-US\js\settings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files\Microsoft Games\Multiplayer\Backgammon\fr-FR\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jre7\lib\zi\Asia\Colombo C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\fr-FR\css\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Windows Media Player\it-IT\wmpnscfg.exe.mui C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.model.workbench_1.1.0.v20140512-1820.jar C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Edmonton C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\UserControl.zip C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0183290.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01172_.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Fiji C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\images\calendar_double_orange.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR11F.GIF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\Office Setup Controller\PowerPoint.en-us\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Scoresbysund C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\uk.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Templates\1033\BlackTieMergeLetter.dotx C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\utilityfunctions.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0086384.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE02293_.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Windows Media Player\es-ES\setup_wm.exe.mui C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGPQUOT.DPV C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE03795_.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\8.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\settings_divider_left.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsrus.xml C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.core_0.10.100.v20140424-2042.jar C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\en-US\boxed-delete.avi C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\af.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Stationery\1033\DADSHIRT.GIF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR25F.GIF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\+NewSQLServerConnection.odc C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\org-netbeans-modules-core-kit.xml_hidden C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0185842.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\TR00232_.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\ja-JP\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.simpleconfigurator_1.1.0.v20131217-1203.jar C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files\DVD Maker\es-ES\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\fr-FR\css\settings.css C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SAFRI_01.MID C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\ARCTIC\PREVIEW.GIF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files\VideoLAN\VLC\locale\mr\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\form_edit.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PSRCHSRN.DAT C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files\Common Files\System\Ole DB\es-ES\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\performance.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files\Common Files\Microsoft Shared\MSInfo\es-ES\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Rankin_Inlet C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\ja-JP\js\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BS00092_.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0187849.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.feature_1.1.0.v20140827-1444\META-INF\MANIFEST.MF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.feature.flightrecorder_5.5.0.165303\feature.properties C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FormsTemplates\Customer Support.fdt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18250_.WMF C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\es-ES\js\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\Mozilla Firefox\browser\features\[email protected] C:\Users\Admin\AppData\Local\Temp\test.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\test.exe N/A

Interacts with shadow copies

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\test.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\test.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: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.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\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2260 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2864 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2864 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2864 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2260 wrote to memory of 2864 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\system32\cmd.exe
PID 2720 wrote to memory of 1812 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2720 wrote to memory of 1812 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2720 wrote to memory of 1812 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2160 wrote to memory of 3164 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2160 wrote to memory of 3164 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2160 wrote to memory of 3164 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2864 wrote to memory of 3268 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2864 wrote to memory of 3268 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2864 wrote to memory of 3268 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2716 wrote to memory of 4052 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2716 wrote to memory of 4052 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2716 wrote to memory of 4052 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2848 wrote to memory of 4060 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2848 wrote to memory of 4060 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2848 wrote to memory of 4060 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2260 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2260 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2260 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2260 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 5116 wrote to memory of 5260 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\reg.exe
PID 5116 wrote to memory of 5260 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\reg.exe
PID 5116 wrote to memory of 5260 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\reg.exe
PID 5116 wrote to memory of 3148 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\rundll32.exe
PID 5116 wrote to memory of 3148 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\rundll32.exe
PID 5116 wrote to memory of 3148 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\rundll32.exe

Uses Volume Shadow Copy service COM API

ransomware

Processes

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

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

C:\Windows\system32\cmd.exe

cmd /c wmic shadowcopy delete /nointeractive

C:\Windows\system32\cmd.exe

cmd /c vssadmin.exe Delete Shadows /All /Quiet

C:\Windows\system32\cmd.exe

cmd /c bcdedit /set {default} recoveryenabled No

C:\Windows\system32\cmd.exe

cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures

C:\Windows\system32\cmd.exe

cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} recoveryenabled No

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

wmic shadowcopy delete /nointeractive

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"

C:\Windows\system32\vssadmin.exe

vssadmin.exe Delete Shadows /All /Quiet

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} bootstatuspolicy ignoreallfailures

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell -Command "$a = [System.IO.File]::ReadAllText(\"F:\GET_YOUR_FILES_BACK.txt\");Add-Type -AssemblyName System.Drawing;$filename = \"$env:temp\$(Get-Random).png\";$bmp = new-object System.Drawing.Bitmap 1920,1080;$font = new-object System.Drawing.Font Consolas,10;$brushBg = [System.Drawing.Brushes]::Black;$brushFg = [System.Drawing.Brushes]::White;$format = [System.Drawing.StringFormat]::GenericDefault;$format.Alignment = [System.Drawing.StringAlignment]::Center;$format.LineAlignment = [System.Drawing.StringAlignment]::Center;$graphics = [System.Drawing.Graphics]::FromImage($bmp);$graphics.FillRectangle($brushBg,0,0,$bmp.Width,$bmp.Height);$graphics.DrawString($a,$font,$brushFg,[System.Drawing.RectangleF]::FromLTRB(0, 0, 1920, 1080),$format);$graphics.Dispose();$bmp.Save($filename);reg add \"HKEY_CURRENT_USER\Control Panel\Desktop\" /v Wallpaper /t REG_SZ /d $filename /f;Start-Sleep 1;rundll32.exe user32.dll, UpdatePerUserSystemParameters, 0, $false;"

C:\Windows\system32\reg.exe

"C:\Windows\system32\reg.exe" add "HKEY_CURRENT_USER\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\606245847.png /f

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False

Network

N/A

Files

F:\GET_YOUR_FILES_BACK.txt

MD5 c92c2b70fb37f84aab38412ad9226aa8
SHA1 14f2e9a83285612d0a7b2c83b8f89bccfde6c154
SHA256 d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f
SHA512 04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848

memory/3268-1703-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

memory/3268-1735-0x0000000002810000-0x0000000002818000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 28386412dbbeaf03f5a2c507fcf290c5
SHA1 80191d5538f52a68d2b9fbf2686161590c143697
SHA256 6ed8f89589b03d1551aa779c9ba683c56897ff5d46644a369f5a48bd93958e67
SHA512 dcb6c4218a4ff7a8291e3ce204c1e19ffd6b32f23c37fc685e3c60e1083e37ee62335d45e2b915b81b97417d6bc41258398efbd96f0901bbea71afb435624745

memory/5116-24522-0x000000001B810000-0x000000001BAF2000-memory.dmp

memory/5116-24523-0x0000000001E80000-0x0000000001E88000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-25 01:58

Reported

2024-12-25 01:59

Platform

win10v2004-20241007-en

Max time kernel

6s

Max time network

45s

Command Line

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

Signatures

Avoslocker Ransomware

ransomware avoslocker

Avoslocker family

avoslocker

Deletes shadow copies

ransomware defense_evasion impact execution

Modifies boot configuration data using bcdedit

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

Renames multiple (4065) files with added filename extension

ransomware

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\test.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\js\nls\de-de\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\core\dev\nls\ca-es\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Windows Media Player\en-US\wmpnssui.dll.mui C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Common Files\Oracle\Java\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sign-services-auth\js\nls\zh-cn\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\images\progress.gif C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\home\images\themes\dark\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\home\js\nls\es-es\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\1851_40x40x32.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\app\dev\nls\sk-sk\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\GenericMailLargeTile.scale-200.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Welcome.pdf C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sign-services-auth\js\nls\pt-br\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\js\nls\ja-jp\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-files\js\nls\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\ja-jp\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\sk-sk\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxCalendarAppList.targetsize-40.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\MicrosoftAccount.scale-100.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\css\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\Abbreviations\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxMailWideTile.scale-200.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\WindowsPowerShell\Modules\Pester\3.4.0\README.md C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer-select\js\nls\pt-br\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\en-ae\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\js\nls\en-gb\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\activity-badge\js\nls\de-de\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Windows Media Player\es-ES\wmplayer.exe.mui C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.147.37\EdgeUpdate.dat C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\walk-through\js\nls\nl-nl\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\Playstore\am_get.svg C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\js\nls\zh-tw\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\images\themes\dark\warning_2x.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\progress_spinner.gif C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\file_types\themes\dark\s_filetype_xd.svg C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Locales\fa.pak C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\js\nls\ru-ru\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\PowerShellGet\1.0.0.1\PSGet.Format.ps1xml C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxMailWideTile.scale-100.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\DSCResources\MSFT_PackageManagement\uk-UA\MSFT_PackageManagement.schema.mfl C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\js\nls\ro-ro\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\desktop-connector-files\js\nls\es-es\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\js\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\js\nls\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\S_IlluCCFilesEmpty_180x180.svg C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\DSCResources\MSFT_PackageManagement\it-IT\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Locales\te.pak C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\en-il\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxA-Generic-Dark.scale-125.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\OutlookPromoTile.scale-100.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxA-Advanced-Dark.scale-150.png C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Locales\ms.pak C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\TypeSupport\Unicode\Mappings\Mac\ROMANIAN.TXT C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\pages-app\js\nls\da-dk\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\exportpdfupsell-app\js\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\UnlockPublish.fon C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\DSCResources\MSFT_PackageManagement\de-DE\MSFT_PackageManagement.strings.psd1 C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\app\dev\nls\da-dk\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\nb-no\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\Scan_visual.svg C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\en-il\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\js\nls\nb-no\ui-strings.js C:\Users\Admin\AppData\Local\Temp\test.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\test.exe N/A

Interacts with shadow copies

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

Opens file in notepad (likely ransom note)

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\NOTEPAD.EXE N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\test.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4248 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 1912 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 1912 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4248 wrote to memory of 3008 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\SYSTEM32\cmd.exe
PID 4272 wrote to memory of 1596 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 4272 wrote to memory of 1596 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2276 wrote to memory of 1060 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2276 wrote to memory of 1060 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2884 wrote to memory of 37552 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2884 wrote to memory of 37552 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 1912 wrote to memory of 37576 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 1912 wrote to memory of 37576 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\bcdedit.exe

Processes

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

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

C:\Windows\SYSTEM32\cmd.exe

cmd /c wmic shadowcopy delete /nointeractive

C:\Windows\SYSTEM32\cmd.exe

cmd /c vssadmin.exe Delete Shadows /All /Quiet

C:\Windows\SYSTEM32\cmd.exe

cmd /c bcdedit /set {default} recoveryenabled No

C:\Windows\SYSTEM32\cmd.exe

cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures

C:\Windows\SYSTEM32\cmd.exe

cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} recoveryenabled No

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

wmic shadowcopy delete /nointeractive

C:\Windows\system32\vssadmin.exe

vssadmin.exe Delete Shadows /All /Quiet

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} bootstatuspolicy ignoreallfailures

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\GET_YOUR_FILES_BACK.txt

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 134.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp

Files

C:\GET_YOUR_FILES_BACK.txt

MD5 c92c2b70fb37f84aab38412ad9226aa8
SHA1 14f2e9a83285612d0a7b2c83b8f89bccfde6c154
SHA256 d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f
SHA512 04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848

memory/31024-22790-0x0000023A506B0000-0x0000023A506D2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l0y5m1dz.4ig.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82