avoslocker | 5277b6dfc55feb2002a93bc92a535360e29b738fb333db5f19be94d1c18b3e52

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 13:43

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General

Target

testing.exe
Size

1.3MB
MD5

af7a3708906e1ba0d51e43ce64e72b95
SHA1

266af0471cdb6c1e7f682da899c4539abc52e46a
SHA256

5277b6dfc55feb2002a93bc92a535360e29b738fb333db5f19be94d1c18b3e52
SHA512

989fe2856a3c21d91b70bc2f207b34d05af22d35aaaec2315d991839939c916bd83e4f5849ec289b9b68799ac96b2b041354758c1af967a3717bcdcfe1994892
SSDEEP

24576:cImw98okVgela0as5CqLVO7XJCjkD3N0HRAWRiDBN:qL5ljasaU2DBN

Score

10^/10

avoslocker defense_evasion discovery evasion execution impact ransomware

Malware Config

Signatures

Avoslocker Ransomware
Avoslocker is a relatively new ransomware, that was observed in late June and early July, 2021.
ransomware avoslocker
Avoslocker family
avoslocker
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
3084	bcdedit.exe
4284	bcdedit.exe

Renames multiple (8475) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	testing.exe

Executes dropped EXE 1 IoCs

pid	Process
3688	temp_executable.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI	temp_executable.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\Z:	temp_executable.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\745019618.png"	reg.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\images\cloud_secured_lg.png	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\themes\dark\core_icons_fw.png	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-pl.xrm-ms	temp_executable.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kk.txt	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\css\main-selector.css	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\fi-fi\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\EmptyView.scale-150.png	temp_executable.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ar-SA\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\ResiliencyLinks\Trust Protection Lists\Mu\Cryptomining.DATA	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\en-gb\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\sk-sk\ui-strings.js	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\hi_contrast\core_icons__retina_hiContrast_wob.png	temp_executable.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\1949_40x40x32.png	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_PrepidBypass-ppd.xrm-ms	temp_executable.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ta.txt	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account-select\js\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\OneNote\prnms006.inf	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-pl.xrm-ms	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_MAK_AE-ul-oob.xrm-ms	temp_executable.exe
File created	C:\Program Files (x86)\Common Files\Microsoft Shared\Stationery\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\js\nls\root\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxMailAppList.targetsize-96.png	temp_executable.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\OutlookMailMediumTile.scale-125.png	temp_executable.exe
File created	C:\Program Files\Microsoft Office\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Resources\1033\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Trial-ul-oob.xrm-ms	temp_executable.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\legal\jdk\unicode.md	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sign-services-auth\js\nls\eu-es\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\js\nls\sv-se\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\tr-tr\ui-strings.js	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-pl.xrm-ms	temp_executable.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\fonts\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Templates\1033\ClassicPhotoAlbum.potx	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_terms_dict.txt	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-ppd.xrm-ms	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\am_get.svg	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_checkbox_partialselected-default_18.svg	temp_executable.exe
File created	C:\Program Files\VideoLAN\VLC\locale\wa\LC_MESSAGES\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-files\js\nls\zh-tw\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File created	C:\Program Files\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\DSCResources\MSFT_PackageManagementSource\ja-JP\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files-select\js\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_ellipses_selected-hover.svg	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\js\nls\es-es\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\Download_on_the_App_Store_Badge_pl_135x40.svg	temp_executable.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\OutlookMailMediumTile.scale-100.png	temp_executable.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\HxMailBadge.scale-150.png	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-80.png	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\themes\dark\[email protected]	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Tracker\reviews_super.gif	temp_executable.exe
File opened for modification	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaBrightDemiItalic.ttf	temp_executable.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\legal\jdk\xalan.md	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\Ole DB\ja-JP\msdaorar.dll.mui	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-files\js\nls\sl-si\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\de-DE\PhotoAcq.dll.mui	temp_executable.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ppd.xrm-ms	temp_executable.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\legal\jdk\dynalink.md	temp_executable.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\nl-nl\ui-strings.js	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\fr-ma\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\en-ae\GET_YOUR_FILES_BACK.txt	temp_executable.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\ExchangeWideTile.scale-150.png	temp_executable.exe
File opened for modification	C:\Program Files\Windows Media Player\es-ES\setup_wm.exe.mui	temp_executable.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\modules\sandbox.luac	temp_executable.exe
File created	C:\Program Files\VideoLAN\VLC\locale\bg\GET_YOUR_FILES_BACK.txt	temp_executable.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
12164	powershell.exe
3588	powershell.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	temp_executable.exe

Interacts with shadow copies 3 TTPs 1 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
4240	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3688	temp_executable.exe
3688	temp_executable.exe
12164	powershell.exe
12164	powershell.exe
12164	powershell.exe
3588	powershell.exe
3588	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	3688	temp_executable.exe
Token: SeIncreaseQuotaPrivilege	1856	WMIC.exe
Token: SeSecurityPrivilege	1856	WMIC.exe
Token: SeTakeOwnershipPrivilege	1856	WMIC.exe
Token: SeLoadDriverPrivilege	1856	WMIC.exe
Token: SeSystemProfilePrivilege	1856	WMIC.exe
Token: SeSystemtimePrivilege	1856	WMIC.exe
Token: SeProfSingleProcessPrivilege	1856	WMIC.exe
Token: SeIncBasePriorityPrivilege	1856	WMIC.exe
Token: SeCreatePagefilePrivilege	1856	WMIC.exe
Token: SeBackupPrivilege	1856	WMIC.exe
Token: SeRestorePrivilege	1856	WMIC.exe
Token: SeShutdownPrivilege	1856	WMIC.exe
Token: SeDebugPrivilege	1856	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1856	WMIC.exe
Token: SeRemoteShutdownPrivilege	1856	WMIC.exe
Token: SeUndockPrivilege	1856	WMIC.exe
Token: SeManageVolumePrivilege	1856	WMIC.exe
Token: 33	1856	WMIC.exe
Token: 34	1856	WMIC.exe
Token: 35	1856	WMIC.exe
Token: 36	1856	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1856	WMIC.exe
Token: SeSecurityPrivilege	1856	WMIC.exe
Token: SeTakeOwnershipPrivilege	1856	WMIC.exe
Token: SeLoadDriverPrivilege	1856	WMIC.exe
Token: SeSystemProfilePrivilege	1856	WMIC.exe
Token: SeSystemtimePrivilege	1856	WMIC.exe
Token: SeProfSingleProcessPrivilege	1856	WMIC.exe
Token: SeIncBasePriorityPrivilege	1856	WMIC.exe
Token: SeCreatePagefilePrivilege	1856	WMIC.exe
Token: SeBackupPrivilege	1856	WMIC.exe
Token: SeRestorePrivilege	1856	WMIC.exe
Token: SeShutdownPrivilege	1856	WMIC.exe
Token: SeDebugPrivilege	1856	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1856	WMIC.exe
Token: SeRemoteShutdownPrivilege	1856	WMIC.exe
Token: SeUndockPrivilege	1856	WMIC.exe
Token: SeManageVolumePrivilege	1856	WMIC.exe
Token: 33	1856	WMIC.exe
Token: 34	1856	WMIC.exe
Token: 35	1856	WMIC.exe
Token: 36	1856	WMIC.exe
Token: SeBackupPrivilege	36720	vssvc.exe
Token: SeRestorePrivilege	36720	vssvc.exe
Token: SeAuditPrivilege	36720	vssvc.exe
Token: SeDebugPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeSecurityPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeSecurityPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe
Token: SeSecurityPrivilege	12164	powershell.exe
Token: SeBackupPrivilege	12164	powershell.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 3688	1448	testing.exe	83
PID 1448 wrote to memory of 3688	1448	testing.exe	83
PID 1448 wrote to memory of 3688	1448	testing.exe	83
PID 3688 wrote to memory of 4000	3688	temp_executable.exe	85
PID 3688 wrote to memory of 4000	3688	temp_executable.exe	85
PID 3688 wrote to memory of 432	3688	temp_executable.exe	86
PID 3688 wrote to memory of 432	3688	temp_executable.exe	86
PID 3688 wrote to memory of 5092	3688	temp_executable.exe	87
PID 3688 wrote to memory of 5092	3688	temp_executable.exe	87
PID 3688 wrote to memory of 4092	3688	temp_executable.exe	88
PID 3688 wrote to memory of 4092	3688	temp_executable.exe	88
PID 3688 wrote to memory of 2276	3688	temp_executable.exe	89
PID 3688 wrote to memory of 2276	3688	temp_executable.exe	89
PID 432 wrote to memory of 4240	432	cmd.exe	91
PID 432 wrote to memory of 4240	432	cmd.exe	91
PID 4000 wrote to memory of 1856	4000	cmd.exe	90
PID 4000 wrote to memory of 1856	4000	cmd.exe	90
PID 4092 wrote to memory of 4284	4092	cmd.exe	92
PID 4092 wrote to memory of 4284	4092	cmd.exe	92
PID 5092 wrote to memory of 3084	5092	cmd.exe	93
PID 5092 wrote to memory of 3084	5092	cmd.exe	93
PID 2276 wrote to memory of 12164	2276	cmd.exe	96
PID 2276 wrote to memory of 12164	2276	cmd.exe	96
PID 3688 wrote to memory of 3588	3688	temp_executable.exe	99
PID 3688 wrote to memory of 3588	3688	temp_executable.exe	99
PID 3588 wrote to memory of 11392	3588	powershell.exe	100
PID 3588 wrote to memory of 11392	3588	powershell.exe	100
PID 3588 wrote to memory of 4644	3588	powershell.exe	101
PID 3588 wrote to memory of 4644	3588	powershell.exe	101

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

C:\Users\Admin\AppData\Local\Temp\testing.exe
"C:\Users\Admin\AppData\Local\Temp\testing.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
  "C:\Users\Admin\AppData\Local\Temp\temp_executable.exe"
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Enumerates connected drives
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3688
- - C:\Windows\SYSTEM32\cmd.exe
    cmd /c wmic shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4000
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete /nointeractive
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1856
- - C:\Windows\SYSTEM32\cmd.exe
    cmd /c vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:432
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      4⤵
      Interacts with shadow copies
      PID:4240
- - C:\Windows\SYSTEM32\cmd.exe
    cmd /c bcdedit /set {default} recoveryenabled No
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5092
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled No
      4⤵
      Modifies boot configuration data using bcdedit
      PID:3084
- - C:\Windows\SYSTEM32\cmd.exe
    cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4092
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:4284
- - C:\Windows\SYSTEM32\cmd.exe
    cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2276
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:12164
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -Command "$a = [System.IO.File]::ReadAllText(\"C:\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;"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3588
  - - 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\745019618.png /f
      4⤵
      Sets desktop wallpaper using registry
      PID:11392
  - - C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False
      4⤵
      PID:4644

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:36720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

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Downloads

C:\GET_YOUR_FILES_BACK.txt

Filesize
1011B

MD5
c92c2b70fb37f84aab38412ad9226aa8

SHA1
14f2e9a83285612d0a7b2c83b8f89bccfde6c154

SHA256
d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f

SHA512
04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
6cf293cb4d80be23433eecf74ddb5503

SHA1
24fe4752df102c2ef492954d6b046cb5512ad408

SHA256
b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8

SHA512
0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
c8861299853606fac3016094fcb76d2e

SHA1
8969dfdc86ceceb91bec0956f6a672a8606bc841

SHA256
07b966f55b6c7b2f633c7a4ace5c3cc0fc6f6dcbea8ff0da2210ed4a34c2cdf0

SHA512
841ca021eb2e9cb9831c2637f97739b0f2b35919b4e7eea3e39af808564f06b1d2175d618912603d1f61b364882c626799f68e069b13224d5db920ac7a267ef3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_e0e140lp.1yh.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
807KB

MD5
e27b5291c8fb2dfdeb7f16bb6851df5e

SHA1
40207f83b601cd60905c1f807ac0889c80dfe33f

SHA256
ffd933ad53f22a0f10cceb4986087258f72dffdd36999b7014c6b37c157ee45f

SHA512
2ddbc50cd780ffbf73c354b9b437322eb49cb05bb6f287d54e7dcafb61dc4c4549e37ae2f972f3d240bfa7d2ca485b7583137f1bf038bc901f378cea0c305c6a

Download Submit
memory/1448-7-0x00007FF7C5830000-0x00007FF7C597D000-memory.dmp

Filesize
1.3MB

Download
memory/12164-16981-0x0000021D99400000-0x0000021D99422000-memory.dmp

Filesize
136KB

Download