avoslocker | 06918af465e607aa81a46042c24e6a8c45d7c983f33ee621caad6b25464dd27a

Analysis

max time kernel
93s
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, 02:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

test.exe
Size

1.1MB
MD5

bc78307b49282fd1039a09c88f5e57d9
SHA1

56ca25bc143ec38871fa5e96561437755a9d0de9
SHA256

06918af465e607aa81a46042c24e6a8c45d7c983f33ee621caad6b25464dd27a
SHA512

af4d43f05b3583d07fb96e0815bcc5624e7e3eb110981a21ff82ec07829bcdfd3d23c7de1b673a41bfb41ac20614f27a28389aed80f75a4399c52b351ba5b5f5
SSDEEP

24576:u4s+oT+NXBLi0rjFXvyHBlbmCZa8Ch1972J1+i3DO2gik:uioT+NXVFjxvMBlbmya8CF4TO2K

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
34300	bcdedit.exe
34316	bcdedit.exe

Renames multiple (8514) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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	test.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:	test.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1941993070.png"	reg.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\fi-fi\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\Playstore\th_get.svg	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\generic-rhp-app\images\rhp_world_icon.png	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected]	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\js\nls\it-it\ui-strings.js	test.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\ResiliencyLinks\Extensions\external_extensions.json.DATA	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\generic-rhp-app\js\plugins\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\js\plugins\exportpdf-tool-view.js	test.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\1949_24x24x32.png	test.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\OutlookMailLargeTile.scale-150.png	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PREVIEWTEMPLATE2.POTX	test.exe
File created	C:\Program Files (x86)\Windows NT\TableTextService\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\LAYERS\PREVIEW.GIF	test.exe
File created	C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\fr\GET_YOUR_FILES_BACK.txt	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\sk-sk\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_reminders_18.svg	test.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxA-Generic-Dark.scale-400.png	test.exe
File opened for modification	C:\Program Files\Windows NT\Accessories\ja-JP\wordpad.exe.mui	test.exe
File opened for modification	C:\Program Files\Windows Media Player\en-US\mpvis.dll.mui	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSIPC\lt\msipc.dll.mui	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Trial-ul-oob.xrm-ms	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\nb-no\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files\Common Files\System\ado\msado60.tlb	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTest-ul-oob.xrm-ms	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\js\nls\pt-br\ui-strings.js	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_SubTrial-ul-oob.xrm-ms	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Trial-ppd.xrm-ms	test.exe
File created	C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\RedistList\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files\Java\jre-1.8\legal\jdk\freebxml.md	test.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\ICE\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\activity-badge\js\nls\nb-no\ui-strings.js	test.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\offsymk.ttf	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\viewer\nls\es-es\ui-strings.js	test.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\OutlookMailBadge.scale-400.png	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-pl.xrm-ms	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\activity-badge\js\nls\pl-pl\ui-strings.js	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\Playstore\id_get.svg	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\tr-tr\GET_YOUR_FILES_BACK.txt	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\es-es\GET_YOUR_FILES_BACK.txt	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\exportpdfupsell-app\js\nls\en-il\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\js\nls\sl-si\ui-strings.js	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\app-center\images\themeless\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\Snippets\ShouldBe.snippets.ps1xml	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\images\themes\dark\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PROOF\MSSP7EN.LEX	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\FPA_FA000000050\FA000000050	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\RMNSQUE\PREVIEW.GIF	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\desktop-connector-files\js\plugin.js	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\hi_contrast\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\wmpnss_color48.png	test.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\unlimited\US_export_policy.jar	test.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipsar.xml	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\viewer\nls\zh-cn\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\[email protected]	test.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\css\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_download_audit_report_18.svg	test.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\ExchangeWideTile.scale-125.png	test.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Trust Protection Lists\Sigma\Cryptomining	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\images\file_info.png	test.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\sendforsignature.svg	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Templates\1033\RedAndBlackLetter.dotx	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\rsod\excelmui.msi.16.en-us.tree.dat	test.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\GET_YOUR_FILES_BACK.txt	test.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Slipstream.xml	test.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
39292	powershell.exe
23320	powershell.exe

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	test.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
34308	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4524	test.exe
4524	test.exe
39292	powershell.exe
39292	powershell.exe
39292	powershell.exe
23320	powershell.exe
23320	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	4524	test.exe
Token: SeIncreaseQuotaPrivilege	39300	WMIC.exe
Token: SeSecurityPrivilege	39300	WMIC.exe
Token: SeTakeOwnershipPrivilege	39300	WMIC.exe
Token: SeLoadDriverPrivilege	39300	WMIC.exe
Token: SeSystemProfilePrivilege	39300	WMIC.exe
Token: SeSystemtimePrivilege	39300	WMIC.exe
Token: SeProfSingleProcessPrivilege	39300	WMIC.exe
Token: SeIncBasePriorityPrivilege	39300	WMIC.exe
Token: SeCreatePagefilePrivilege	39300	WMIC.exe
Token: SeBackupPrivilege	39300	WMIC.exe
Token: SeRestorePrivilege	39300	WMIC.exe
Token: SeShutdownPrivilege	39300	WMIC.exe
Token: SeDebugPrivilege	39300	WMIC.exe
Token: SeSystemEnvironmentPrivilege	39300	WMIC.exe
Token: SeRemoteShutdownPrivilege	39300	WMIC.exe
Token: SeUndockPrivilege	39300	WMIC.exe
Token: SeManageVolumePrivilege	39300	WMIC.exe
Token: 33	39300	WMIC.exe
Token: 34	39300	WMIC.exe
Token: 35	39300	WMIC.exe
Token: 36	39300	WMIC.exe
Token: SeBackupPrivilege	39428	vssvc.exe
Token: SeRestorePrivilege	39428	vssvc.exe
Token: SeAuditPrivilege	39428	vssvc.exe
Token: SeIncreaseQuotaPrivilege	39300	WMIC.exe
Token: SeSecurityPrivilege	39300	WMIC.exe
Token: SeTakeOwnershipPrivilege	39300	WMIC.exe
Token: SeLoadDriverPrivilege	39300	WMIC.exe
Token: SeSystemProfilePrivilege	39300	WMIC.exe
Token: SeSystemtimePrivilege	39300	WMIC.exe
Token: SeProfSingleProcessPrivilege	39300	WMIC.exe
Token: SeIncBasePriorityPrivilege	39300	WMIC.exe
Token: SeCreatePagefilePrivilege	39300	WMIC.exe
Token: SeBackupPrivilege	39300	WMIC.exe
Token: SeRestorePrivilege	39300	WMIC.exe
Token: SeShutdownPrivilege	39300	WMIC.exe
Token: SeDebugPrivilege	39300	WMIC.exe
Token: SeSystemEnvironmentPrivilege	39300	WMIC.exe
Token: SeRemoteShutdownPrivilege	39300	WMIC.exe
Token: SeUndockPrivilege	39300	WMIC.exe
Token: SeManageVolumePrivilege	39300	WMIC.exe
Token: 33	39300	WMIC.exe
Token: 34	39300	WMIC.exe
Token: 35	39300	WMIC.exe
Token: 36	39300	WMIC.exe
Token: SeDebugPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeSecurityPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeSecurityPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe
Token: SeSecurityPrivilege	39292	powershell.exe
Token: SeBackupPrivilege	39292	powershell.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 2908	4524	test.exe	84
PID 4524 wrote to memory of 2908	4524	test.exe	84
PID 4524 wrote to memory of 1692	4524	test.exe	85
PID 4524 wrote to memory of 1692	4524	test.exe	85
PID 4524 wrote to memory of 2844	4524	test.exe	86
PID 4524 wrote to memory of 2844	4524	test.exe	86
PID 4524 wrote to memory of 1684	4524	test.exe	87
PID 4524 wrote to memory of 1684	4524	test.exe	87
PID 4524 wrote to memory of 672	4524	test.exe	88
PID 4524 wrote to memory of 672	4524	test.exe	88
PID 1692 wrote to memory of 34308	1692	cmd.exe	90
PID 1692 wrote to memory of 34308	1692	cmd.exe	90
PID 2844 wrote to memory of 34300	2844	cmd.exe	89
PID 2844 wrote to memory of 34300	2844	cmd.exe	89
PID 1684 wrote to memory of 34316	1684	cmd.exe	91
PID 1684 wrote to memory of 34316	1684	cmd.exe	91
PID 672 wrote to memory of 39292	672	cmd.exe	93
PID 672 wrote to memory of 39292	672	cmd.exe	93
PID 2908 wrote to memory of 39300	2908	cmd.exe	94
PID 2908 wrote to memory of 39300	2908	cmd.exe	94
PID 4524 wrote to memory of 23320	4524	test.exe	98
PID 4524 wrote to memory of 23320	4524	test.exe	98
PID 23320 wrote to memory of 24448	23320	powershell.exe	99
PID 23320 wrote to memory of 24448	23320	powershell.exe	99
PID 23320 wrote to memory of 24904	23320	powershell.exe	100
PID 23320 wrote to memory of 24904	23320	powershell.exe	100

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\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
1⤵
- 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:4524
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c wmic shadowcopy delete /nointeractive
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2908
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:39300
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:34308
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c bcdedit /set {default} recoveryenabled No
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {default} recoveryenabled No
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:34300
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1684
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {default} bootstatuspolicy ignoreallfailures
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:34316
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:672
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:39292
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$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;"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:23320
- - 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\1941993070.png /f
    3⤵
    - Sets desktop wallpaper using registry
    PID:24448
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False
    3⤵
    PID:24904

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:39428

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

Replay Monitor

Loading Replay Monitor...

Downloads

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
64B

MD5
d8b9a260789a22d72263ef3bb119108c

SHA1
376a9bd48726f422679f2cd65003442c0b6f6dd5

SHA256
d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

SHA512
550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1flpscyn.wxb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
F:\$RECYCLE.BIN\GET_YOUR_FILES_BACK.txt

Filesize
1011B

MD5
c92c2b70fb37f84aab38412ad9226aa8

SHA1
14f2e9a83285612d0a7b2c83b8f89bccfde6c154

SHA256
d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f

SHA512
04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848

Download Submit
memory/39292-16836-0x000001EC66F90000-0x000001EC66FB2000-memory.dmp

Filesize
136KB

Download