Malware Analysis Report

2025-01-22 20:51

Sample ID 241225-q22fvavkcp
Target testing.exe
SHA256 3c848d6123bfb14ad845243fcccc754b3afedac7cf5bfcfddc0459586ef3768d
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

3c848d6123bfb14ad845243fcccc754b3afedac7cf5bfcfddc0459586ef3768d

Threat Level: Known bad

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

Malicious Activity Summary

avoslocker defense_evasion discovery evasion execution impact ransomware

Avoslocker family

Avoslocker Ransomware

Deletes shadow copies

Modifies boot configuration data using bcdedit

Renames multiple (10387) files with added filename extension

Checks computer location settings

Executes dropped EXE

Drops desktop.ini file(s)

Enumerates connected drives

Sets desktop wallpaper using registry

Drops file in Program Files directory

Command and Scripting Interpreter: PowerShell

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Uses Volume Shadow Copy service COM API

Opens file in notepad (likely ransom note)

Suspicious use of WriteProcessMemory

Interacts with shadow copies

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-25 13:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-25 13:46

Reported

2024-12-25 13:48

Platform

win7-20241010-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\testing.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 (10387) files with added filename extension

ransomware

Executes dropped EXE

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

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\temp_executable.exe N/A

Enumerates connected drives

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

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1026460137.png" C:\Windows\system32\reg.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\fr-FR\css\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\images\bPrev-down.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Windows Media Player\de-DE\WMPDMC.exe.mui C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jre7\release C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jre7\lib\zi\Europe\Volgograd C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Argentina\Cordoba C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\ja-JP\gadget.xml C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Windows Media Player\fr-FR\setup_wm.exe.mui C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.JP.XML C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\TEXTBOX.JPG C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\TaskbarIconImages256Colors.bmp C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Thule C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.workbench_3.106.1.v20140827-1737.jar C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\RCLRPT.CFG C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR1F.GIF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA02405_.WMF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Common Files\System\Ole DB\es-ES\msdasqlr.dll.mui C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Boa_Vista C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Effects\Opulent.eftx C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\Publisher\Backgrounds\WB00703L.GIF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-profiler_zh_CN.jar C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web\webbase.xml C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0232393.WMF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02743G.GIF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File created C:\Program Files (x86)\Internet Explorer\SIGNUP\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_moon-last-quarter.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\toc.xml C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\NavigationUp_ButtonGraphic.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwresmlm.dat C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_box_divider_left.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR45B.GIF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR50F.GIF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\HH00241_.WMF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0309480.JPG C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\images\item_hover_floating.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\NOTICE C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\it-IT\TipRes.dll.mui C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\ps.txt C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0215076.WMF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\en-US\picturePuzzle.html C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.director.nl_ja_4.4.0.v20140623020002.jar C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Windows NT\TableTextService\it-IT\TableTextService.dll.mui C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGPICCAP.DPV C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\FS3BOX.POC C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\macroprogress.gif C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\IN00233_.WMF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0102594.WMF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\flyout.html C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\settings_corner_bottom_left.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Antarctica\Rothera C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\1047x576black.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\logo.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File created C:\Program Files\VideoLAN\VLC\locale\kk\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Circle_SelectionSubpictureB.png C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Windows Defender\fr-FR\MpEvMsg.dll.mui C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Windows Defender\en-US\MpAsDesc.dll.mui C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\EmbeddedView.jpg C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Apothecary.thmx C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD00419_.WMF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\DefaultID.pdf C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File created C:\Program Files\Windows Photo Viewer\GET_YOUR_FILES_BACK.txt C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18196_.WMF C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Concourse.thmx C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\en-US\css\calendar.css C:\Users\Admin\AppData\Local\Temp\temp_executable.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

Enumerates physical storage devices

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\temp_executable.exe N/A

Interacts with shadow copies

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2560 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\testing.exe C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
PID 2560 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\testing.exe C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
PID 2560 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\testing.exe C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
PID 2560 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\testing.exe C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
PID 1748 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 1748 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\system32\cmd.exe
PID 2724 wrote to memory of 2016 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2724 wrote to memory of 2016 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2724 wrote to memory of 2016 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2104 wrote to memory of 2952 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2104 wrote to memory of 2952 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2104 wrote to memory of 2952 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 396 wrote to memory of 2032 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 396 wrote to memory of 2032 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 396 wrote to memory of 2032 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2956 wrote to memory of 2960 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2956 wrote to memory of 2960 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2956 wrote to memory of 2960 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2376 wrote to memory of 1572 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2376 wrote to memory of 1572 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2376 wrote to memory of 1572 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1748 wrote to memory of 5676 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1748 wrote to memory of 5676 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1748 wrote to memory of 5676 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1748 wrote to memory of 5676 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 5676 wrote to memory of 3820 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\reg.exe
PID 5676 wrote to memory of 3820 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\reg.exe
PID 5676 wrote to memory of 3820 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\reg.exe
PID 5676 wrote to memory of 4356 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\rundll32.exe
PID 5676 wrote to memory of 4356 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\rundll32.exe
PID 5676 wrote to memory of 4356 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\testing.exe

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

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

"C:\Users\Admin\AppData\Local\Temp\temp_executable.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\bcdedit.exe

bcdedit /set {default} bootstatuspolicy ignoreallfailures

C:\Windows\system32\vssadmin.exe

vssadmin.exe Delete Shadows /All /Quiet

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\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\1026460137.png /f

C:\Windows\system32\rundll32.exe

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

Network

N/A

Files

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

MD5 e27b5291c8fb2dfdeb7f16bb6851df5e
SHA1 40207f83b601cd60905c1f807ac0889c80dfe33f
SHA256 ffd933ad53f22a0f10cceb4986087258f72dffdd36999b7014c6b37c157ee45f
SHA512 2ddbc50cd780ffbf73c354b9b437322eb49cb05bb6f287d54e7dcafb61dc4c4549e37ae2f972f3d240bfa7d2ca485b7583137f1bf038bc901f378cea0c305c6a

memory/2560-5-0x000000013F1A0000-0x000000013F2BE000-memory.dmp

C:\Users\GET_YOUR_FILES_BACK.txt

MD5 c92c2b70fb37f84aab38412ad9226aa8
SHA1 14f2e9a83285612d0a7b2c83b8f89bccfde6c154
SHA256 d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f
SHA512 04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848

memory/1572-952-0x000000001B760000-0x000000001BA42000-memory.dmp

memory/1572-983-0x0000000001E80000-0x0000000001E88000-memory.dmp

\??\PIPE\srvsvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

MD5 90e25ae7ffc92b5e12a6b6c37a793e69
SHA1 8b6580e1a8c43e2929cf79a61058e633d7ae9faf
SHA256 74ac0314e4c1423b205dc9530801f3b7478b76d73a3e4e77982befc28c973843
SHA512 17a9fb39be189b8e6c26df8f8cc006ef320c1dbbd5ba28418221778a16bfe7cac8de4c74e0df4433daeb4e193941252368863509a8627cea86475a1ce7487fcb

memory/5676-24527-0x000000001B760000-0x000000001BA42000-memory.dmp

memory/5676-24528-0x0000000001D90000-0x0000000001D98000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-25 13:46

Reported

2024-12-25 13:47

Platform

win10v2004-20241007-en

Max time kernel

0s

Max time network

13s

Command Line

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

Signatures

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\testing.exe N/A

Executes dropped EXE

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

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\temp_executable.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

Enumerates physical storage devices

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\temp_executable.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\temp_executable.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 912 wrote to memory of 4492 N/A C:\Users\Admin\AppData\Local\Temp\testing.exe C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
PID 912 wrote to memory of 4492 N/A C:\Users\Admin\AppData\Local\Temp\testing.exe C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
PID 912 wrote to memory of 4492 N/A C:\Users\Admin\AppData\Local\Temp\testing.exe C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
PID 4492 wrote to memory of 3424 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 3424 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 4888 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 4888 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 4296 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 4492 wrote to memory of 4296 N/A C:\Users\Admin\AppData\Local\Temp\temp_executable.exe C:\Windows\SYSTEM32\cmd.exe
PID 3424 wrote to memory of 3616 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 3424 wrote to memory of 3616 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 4272 wrote to memory of 3576 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 4272 wrote to memory of 3576 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 4296 wrote to memory of 3800 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4296 wrote to memory of 3800 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2400 wrote to memory of 3480 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 2400 wrote to memory of 3480 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 4888 wrote to memory of 3880 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 4888 wrote to memory of 3880 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\bcdedit.exe

Processes

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

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

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

"C:\Users\Admin\AppData\Local\Temp\temp_executable.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\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} recoveryenabled No

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

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

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} bootstatuspolicy ignoreallfailures

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 134.130.81.91.in-addr.arpa udp

Files

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

MD5 e27b5291c8fb2dfdeb7f16bb6851df5e
SHA1 40207f83b601cd60905c1f807ac0889c80dfe33f
SHA256 ffd933ad53f22a0f10cceb4986087258f72dffdd36999b7014c6b37c157ee45f
SHA512 2ddbc50cd780ffbf73c354b9b437322eb49cb05bb6f287d54e7dcafb61dc4c4549e37ae2f972f3d240bfa7d2ca485b7583137f1bf038bc901f378cea0c305c6a

memory/912-7-0x00007FF696D00000-0x00007FF696E1E000-memory.dmp

F:\GET_YOUR_FILES_BACK.txt

MD5 c92c2b70fb37f84aab38412ad9226aa8
SHA1 14f2e9a83285612d0a7b2c83b8f89bccfde6c154
SHA256 d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f
SHA512 04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_31l2ccth.4ey.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3800-17571-0x000001B6B45E0000-0x000001B6B4602000-memory.dmp