avoslocker | 3c848d6123bfb14ad845243fcccc754b3afedac7cf5bfcfddc0459586ef3768d

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 13:46

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General

Target

testing.exe
Size

1.1MB
MD5

2f6b9891e81a5c69016ef0565cb6f436
SHA1

3445e6f4e58e294fe973c00e3abe50e1a72ccdde
SHA256

3c848d6123bfb14ad845243fcccc754b3afedac7cf5bfcfddc0459586ef3768d
SHA512

a1608ed020a9c5434735ef15738995cde75aeaff7a2ee6d1114ad0926037d692700330d6224f39736be6b8491ebcd3c0142a26a86b1cecc94c86b253a04f6667
SSDEEP

24576:DImw98okVgela0as5CqLVO7XJCjkD3N0HRA:lL5ljasaU

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
2952	bcdedit.exe
2016	bcdedit.exe

Renames multiple (10387) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Executes dropped EXE 1 IoCs

pid	Process
1748	temp_executable.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\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-1-5-21-2039016743-699959520-214465309-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1026460137.png"	reg.exe

Drops file in Program Files directory 64 IoCs

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
5676	powershell.exe
1572	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
2032	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1748	temp_executable.exe
1572	powershell.exe
5676	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	1748	temp_executable.exe
Token: SeIncreaseQuotaPrivilege	2960	WMIC.exe
Token: SeSecurityPrivilege	2960	WMIC.exe
Token: SeTakeOwnershipPrivilege	2960	WMIC.exe
Token: SeLoadDriverPrivilege	2960	WMIC.exe
Token: SeSystemProfilePrivilege	2960	WMIC.exe
Token: SeSystemtimePrivilege	2960	WMIC.exe
Token: SeProfSingleProcessPrivilege	2960	WMIC.exe
Token: SeIncBasePriorityPrivilege	2960	WMIC.exe
Token: SeCreatePagefilePrivilege	2960	WMIC.exe
Token: SeBackupPrivilege	2960	WMIC.exe
Token: SeRestorePrivilege	2960	WMIC.exe
Token: SeShutdownPrivilege	2960	WMIC.exe
Token: SeDebugPrivilege	2960	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2960	WMIC.exe
Token: SeRemoteShutdownPrivilege	2960	WMIC.exe
Token: SeUndockPrivilege	2960	WMIC.exe
Token: SeManageVolumePrivilege	2960	WMIC.exe
Token: 33	2960	WMIC.exe
Token: 34	2960	WMIC.exe
Token: 35	2960	WMIC.exe
Token: SeDebugPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeSecurityPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeSecurityPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeSecurityPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeSecurityPrivilege	1572	powershell.exe
Token: SeIncreaseQuotaPrivilege	2960	WMIC.exe
Token: SeSecurityPrivilege	2960	WMIC.exe
Token: SeTakeOwnershipPrivilege	2960	WMIC.exe
Token: SeLoadDriverPrivilege	2960	WMIC.exe
Token: SeSystemProfilePrivilege	2960	WMIC.exe
Token: SeSystemtimePrivilege	2960	WMIC.exe
Token: SeProfSingleProcessPrivilege	2960	WMIC.exe
Token: SeIncBasePriorityPrivilege	2960	WMIC.exe
Token: SeCreatePagefilePrivilege	2960	WMIC.exe
Token: SeBackupPrivilege	2960	WMIC.exe
Token: SeRestorePrivilege	2960	WMIC.exe
Token: SeShutdownPrivilege	2960	WMIC.exe
Token: SeDebugPrivilege	2960	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2960	WMIC.exe
Token: SeRemoteShutdownPrivilege	2960	WMIC.exe
Token: SeUndockPrivilege	2960	WMIC.exe
Token: SeManageVolumePrivilege	2960	WMIC.exe
Token: 33	2960	WMIC.exe
Token: 34	2960	WMIC.exe
Token: 35	2960	WMIC.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeSecurityPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1296	vssvc.exe
Token: SeRestorePrivilege	1296	vssvc.exe
Token: SeAuditPrivilege	1296	vssvc.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeSecurityPrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeSecurityPrivilege	1572	powershell.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 1748	2560	testing.exe	32
PID 2560 wrote to memory of 1748	2560	testing.exe	32
PID 2560 wrote to memory of 1748	2560	testing.exe	32
PID 2560 wrote to memory of 1748	2560	testing.exe	32
PID 1748 wrote to memory of 2956	1748	temp_executable.exe	34
PID 1748 wrote to memory of 2956	1748	temp_executable.exe	34
PID 1748 wrote to memory of 2956	1748	temp_executable.exe	34
PID 1748 wrote to memory of 2956	1748	temp_executable.exe	34
PID 1748 wrote to memory of 396	1748	temp_executable.exe	35
PID 1748 wrote to memory of 396	1748	temp_executable.exe	35
PID 1748 wrote to memory of 396	1748	temp_executable.exe	35
PID 1748 wrote to memory of 396	1748	temp_executable.exe	35
PID 1748 wrote to memory of 2724	1748	temp_executable.exe	36
PID 1748 wrote to memory of 2724	1748	temp_executable.exe	36
PID 1748 wrote to memory of 2724	1748	temp_executable.exe	36
PID 1748 wrote to memory of 2724	1748	temp_executable.exe	36
PID 1748 wrote to memory of 2104	1748	temp_executable.exe	37
PID 1748 wrote to memory of 2104	1748	temp_executable.exe	37
PID 1748 wrote to memory of 2104	1748	temp_executable.exe	37
PID 1748 wrote to memory of 2104	1748	temp_executable.exe	37
PID 1748 wrote to memory of 2376	1748	temp_executable.exe	38
PID 1748 wrote to memory of 2376	1748	temp_executable.exe	38
PID 1748 wrote to memory of 2376	1748	temp_executable.exe	38
PID 1748 wrote to memory of 2376	1748	temp_executable.exe	38
PID 2724 wrote to memory of 2016	2724	cmd.exe	39
PID 2724 wrote to memory of 2016	2724	cmd.exe	39
PID 2724 wrote to memory of 2016	2724	cmd.exe	39
PID 2104 wrote to memory of 2952	2104	cmd.exe	40
PID 2104 wrote to memory of 2952	2104	cmd.exe	40
PID 2104 wrote to memory of 2952	2104	cmd.exe	40
PID 396 wrote to memory of 2032	396	cmd.exe	41
PID 396 wrote to memory of 2032	396	cmd.exe	41
PID 396 wrote to memory of 2032	396	cmd.exe	41
PID 2956 wrote to memory of 2960	2956	cmd.exe	42
PID 2956 wrote to memory of 2960	2956	cmd.exe	42
PID 2956 wrote to memory of 2960	2956	cmd.exe	42
PID 2376 wrote to memory of 1572	2376	cmd.exe	43
PID 2376 wrote to memory of 1572	2376	cmd.exe	43
PID 2376 wrote to memory of 1572	2376	cmd.exe	43
PID 1748 wrote to memory of 5676	1748	temp_executable.exe	48
PID 1748 wrote to memory of 5676	1748	temp_executable.exe	48
PID 1748 wrote to memory of 5676	1748	temp_executable.exe	48
PID 1748 wrote to memory of 5676	1748	temp_executable.exe	48
PID 5676 wrote to memory of 3820	5676	powershell.exe	49
PID 5676 wrote to memory of 3820	5676	powershell.exe	49
PID 5676 wrote to memory of 3820	5676	powershell.exe	49
PID 5676 wrote to memory of 4356	5676	powershell.exe	50
PID 5676 wrote to memory of 4356	5676	powershell.exe	50
PID 5676 wrote to memory of 4356	5676	powershell.exe	50

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⤵
- Suspicious use of WriteProcessMemory
PID:2560
- 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:1748
- - C:\Windows\system32\cmd.exe
    cmd /c wmic shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2956
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete /nointeractive
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2960
- - C:\Windows\system32\cmd.exe
    cmd /c vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:396
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      4⤵
      Interacts with shadow copies
      PID:2032
- - C:\Windows\system32\cmd.exe
    cmd /c bcdedit /set {default} recoveryenabled No
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2724
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled No
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2016
- - C:\Windows\system32\cmd.exe
    cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2104
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2952
- - C:\Windows\system32\cmd.exe
    cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2376
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1572
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -Command "$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;"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:5676
  - - 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
      4⤵
      Sets desktop wallpaper using registry
      PID:3820
  - - C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False
      4⤵
      PID:4356

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1296

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\Temp\temp_executable.exe

Filesize
807KB

MD5
e27b5291c8fb2dfdeb7f16bb6851df5e

SHA1
40207f83b601cd60905c1f807ac0889c80dfe33f

SHA256
ffd933ad53f22a0f10cceb4986087258f72dffdd36999b7014c6b37c157ee45f

SHA512
2ddbc50cd780ffbf73c354b9b437322eb49cb05bb6f287d54e7dcafb61dc4c4549e37ae2f972f3d240bfa7d2ca485b7583137f1bf038bc901f378cea0c305c6a

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

Filesize
7KB

MD5
90e25ae7ffc92b5e12a6b6c37a793e69

SHA1
8b6580e1a8c43e2929cf79a61058e633d7ae9faf

SHA256
74ac0314e4c1423b205dc9530801f3b7478b76d73a3e4e77982befc28c973843

SHA512
17a9fb39be189b8e6c26df8f8cc006ef320c1dbbd5ba28418221778a16bfe7cac8de4c74e0df4433daeb4e193941252368863509a8627cea86475a1ce7487fcb

Download Submit
C:\Users\GET_YOUR_FILES_BACK.txt

Filesize
1011B

MD5
c92c2b70fb37f84aab38412ad9226aa8

SHA1
14f2e9a83285612d0a7b2c83b8f89bccfde6c154

SHA256
d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f

SHA512
04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848

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

Filesize
2.9MB

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

Filesize
32KB

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

Filesize
1.1MB

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

Filesize
2.9MB

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

Filesize
32KB

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