avoslocker | f8e99bbacc62b0f72aa12f5f92e35607fa0382a881fe4a4b9476fc6b87a03c78

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 00:27

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General

Target

ransomware.exe
Size

807KB
MD5

8da384b2427b8397a5934182c159c257
SHA1

7bcd2d32a19c1ac7bd014dc9e64b806fdff5f5de
SHA256

f8e99bbacc62b0f72aa12f5f92e35607fa0382a881fe4a4b9476fc6b87a03c78
SHA512

3c4b1736efa48a4897769f12df488e60737523eaffc886ecfbd5b7191f058749bdb4a36feb067e8ca0ef418a7602b3390b6cf465412b88a4ba2fce8a4d670a89
SSDEEP

12288:0Z4s3rg9u/2/oT+NXtHLlP/O+OeO+OeNhBBhhBBAtHg9rjI+LXJ0ivlzkHBDsYAu:u4s+oT+NXBLi0rjFXvyHBlb6CZa8

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
2236	bcdedit.exe
3272	bcdedit.exe

Renames multiple (10408) 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 (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI	ransomware.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:	ransomware.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-1-5-21-2872745919-2748461613-2989606286-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2012890814.png"	reg.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Swirl\HEADER.GIF	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO02886_.WMF	ransomware.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\en-US\js\calendar.js	ransomware.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-application-views_zh_CN.jar	ransomware.exe
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\en-US\js\GET_YOUR_FILES_BACK.txt	ransomware.exe
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\de-DE\css\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsViewFrame.html	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR6B.GIF	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\POWERPNT_F_COL.HXK	ransomware.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\as_IN\LC_MESSAGES\vlc.mo	ransomware.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\33.png	ransomware.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\ehshellLogo.png	ransomware.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.babel.nls_eclipse_ja_4.4.0.v20140623020002\license.html	ransomware.exe
File created	C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\SUMIPNTG\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\images\Tulip.jpg	ransomware.exe
File created	C:\Program Files\VideoLAN\VLC\plugins\meta_engine\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Nassau	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveProjectToolset\TABOFF.JPG	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\CURRENCY.JPG	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Apex.xml	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\HH00602_.WMF	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Effects\Grid.eftx	ransomware.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Asia\Riyadh89	ransomware.exe
File opened for modification	C:\Program Files\Java\jre7\lib\ext\sunjce_provider.jar	ransomware.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.director.app.nl_zh_4.4.0.v20140623020002.jar	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR40F.GIF	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02750U.BMP	ransomware.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-selector-api_zh_CN.jar	ransomware.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\images\Video-48.png	ransomware.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.ibm.icu_52.1.0.v201404241930.jar	ransomware.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Qyzylorda	ransomware.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\en-US\boxed-correct.avi	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099165.JPG	ransomware.exe
File created	C:\Program Files (x86)\Common Files\microsoft shared\MSEnv\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\de-DE\gadget.xml	ransomware.exe
File opened for modification	C:\Program Files\Windows Journal\de-DE\jnwdui.dll.mui	ransomware.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mr.txt	ransomware.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\MS.PNG	ransomware.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\warning.gif	ransomware.exe
File created	C:\Program Files\Microsoft Games\More Games\de-DE\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\1047x576black.png	ransomware.exe
File created	C:\Program Files\Windows NT\Accessories\fr-FR\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\VisualElements\SmallLogoDev.png	ransomware.exe
File opened for modification	C:\Program Files\DVD Maker\ja-JP\DVDMaker.exe.mui	ransomware.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_gray_snow.png	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Templates\1033\Access\DataType\Tags.accft	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01146_.WMF	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0301418.WMF	ransomware.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\images\reveal_down.png	ransomware.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\images\calendar_double.png	ransomware.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\th\LC_MESSAGES\vlc.mo	ransomware.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Glace_Bay	ransomware.exe
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\es-ES\css\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\QuickStyles\Modern.dotx	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE05869_.WMF	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00629_.WMF	ransomware.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\shadowonlyframe_videoinset.png	ransomware.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_left_disabled.png	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\CommonData\AlertImage_FileOffMask.bmp	ransomware.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\1033\ODBCR.SAM	ransomware.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\en-US\gadget.xml	ransomware.exe
File created	C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\en-US\js\GET_YOUR_FILES_BACK.txt	ransomware.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-profiler.jar	ransomware.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
496	powershell.exe
5388	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	ransomware.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
3304	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1096	ransomware.exe
496	powershell.exe
5388	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	1096	ransomware.exe
Token: SeIncreaseQuotaPrivilege	2104	WMIC.exe
Token: SeSecurityPrivilege	2104	WMIC.exe
Token: SeTakeOwnershipPrivilege	2104	WMIC.exe
Token: SeLoadDriverPrivilege	2104	WMIC.exe
Token: SeSystemProfilePrivilege	2104	WMIC.exe
Token: SeSystemtimePrivilege	2104	WMIC.exe
Token: SeProfSingleProcessPrivilege	2104	WMIC.exe
Token: SeIncBasePriorityPrivilege	2104	WMIC.exe
Token: SeCreatePagefilePrivilege	2104	WMIC.exe
Token: SeBackupPrivilege	2104	WMIC.exe
Token: SeRestorePrivilege	2104	WMIC.exe
Token: SeShutdownPrivilege	2104	WMIC.exe
Token: SeDebugPrivilege	2104	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2104	WMIC.exe
Token: SeRemoteShutdownPrivilege	2104	WMIC.exe
Token: SeUndockPrivilege	2104	WMIC.exe
Token: SeManageVolumePrivilege	2104	WMIC.exe
Token: 33	2104	WMIC.exe
Token: 34	2104	WMIC.exe
Token: 35	2104	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2104	WMIC.exe
Token: SeSecurityPrivilege	2104	WMIC.exe
Token: SeTakeOwnershipPrivilege	2104	WMIC.exe
Token: SeLoadDriverPrivilege	2104	WMIC.exe
Token: SeSystemProfilePrivilege	2104	WMIC.exe
Token: SeSystemtimePrivilege	2104	WMIC.exe
Token: SeProfSingleProcessPrivilege	2104	WMIC.exe
Token: SeIncBasePriorityPrivilege	2104	WMIC.exe
Token: SeCreatePagefilePrivilege	2104	WMIC.exe
Token: SeBackupPrivilege	2104	WMIC.exe
Token: SeRestorePrivilege	2104	WMIC.exe
Token: SeShutdownPrivilege	2104	WMIC.exe
Token: SeDebugPrivilege	2104	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2104	WMIC.exe
Token: SeRemoteShutdownPrivilege	2104	WMIC.exe
Token: SeUndockPrivilege	2104	WMIC.exe
Token: SeManageVolumePrivilege	2104	WMIC.exe
Token: 33	2104	WMIC.exe
Token: 34	2104	WMIC.exe
Token: 35	2104	WMIC.exe
Token: SeBackupPrivilege	3904	vssvc.exe
Token: SeRestorePrivilege	3904	vssvc.exe
Token: SeAuditPrivilege	3904	vssvc.exe
Token: SeDebugPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeSecurityPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeSecurityPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeSecurityPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeSecurityPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeSecurityPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeSecurityPrivilege	496	powershell.exe
Token: SeBackupPrivilege	496	powershell.exe
Token: SeSecurityPrivilege	496	powershell.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 2532	1096	ransomware.exe	31
PID 1096 wrote to memory of 2532	1096	ransomware.exe	31
PID 1096 wrote to memory of 2532	1096	ransomware.exe	31
PID 1096 wrote to memory of 2532	1096	ransomware.exe	31
PID 1096 wrote to memory of 2072	1096	ransomware.exe	32
PID 1096 wrote to memory of 2072	1096	ransomware.exe	32
PID 1096 wrote to memory of 2072	1096	ransomware.exe	32
PID 1096 wrote to memory of 2072	1096	ransomware.exe	32
PID 1096 wrote to memory of 2076	1096	ransomware.exe	33
PID 1096 wrote to memory of 2076	1096	ransomware.exe	33
PID 1096 wrote to memory of 2076	1096	ransomware.exe	33
PID 1096 wrote to memory of 2076	1096	ransomware.exe	33
PID 1096 wrote to memory of 2396	1096	ransomware.exe	34
PID 1096 wrote to memory of 2396	1096	ransomware.exe	34
PID 1096 wrote to memory of 2396	1096	ransomware.exe	34
PID 1096 wrote to memory of 2396	1096	ransomware.exe	34
PID 1096 wrote to memory of 2940	1096	ransomware.exe	35
PID 1096 wrote to memory of 2940	1096	ransomware.exe	35
PID 1096 wrote to memory of 2940	1096	ransomware.exe	35
PID 1096 wrote to memory of 2940	1096	ransomware.exe	35
PID 2940 wrote to memory of 496	2940	cmd.exe	37
PID 2940 wrote to memory of 496	2940	cmd.exe	37
PID 2940 wrote to memory of 496	2940	cmd.exe	37
PID 2076 wrote to memory of 2236	2076	cmd.exe	36
PID 2076 wrote to memory of 2236	2076	cmd.exe	36
PID 2076 wrote to memory of 2236	2076	cmd.exe	36
PID 2532 wrote to memory of 2104	2532	cmd.exe	38
PID 2532 wrote to memory of 2104	2532	cmd.exe	38
PID 2532 wrote to memory of 2104	2532	cmd.exe	38
PID 2396 wrote to memory of 3272	2396	cmd.exe	39
PID 2396 wrote to memory of 3272	2396	cmd.exe	39
PID 2396 wrote to memory of 3272	2396	cmd.exe	39
PID 2072 wrote to memory of 3304	2072	cmd.exe	40
PID 2072 wrote to memory of 3304	2072	cmd.exe	40
PID 2072 wrote to memory of 3304	2072	cmd.exe	40
PID 1096 wrote to memory of 5388	1096	ransomware.exe	46
PID 1096 wrote to memory of 5388	1096	ransomware.exe	46
PID 1096 wrote to memory of 5388	1096	ransomware.exe	46
PID 1096 wrote to memory of 5388	1096	ransomware.exe	46
PID 5388 wrote to memory of 2928	5388	powershell.exe	47
PID 5388 wrote to memory of 2928	5388	powershell.exe	47
PID 5388 wrote to memory of 2928	5388	powershell.exe	47
PID 5388 wrote to memory of 3380	5388	powershell.exe	48
PID 5388 wrote to memory of 3380	5388	powershell.exe	48
PID 5388 wrote to memory of 3380	5388	powershell.exe	48

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\ransomware.exe
"C:\Users\Admin\AppData\Local\Temp\ransomware.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:1096
- C:\Windows\system32\cmd.exe
  cmd /c wmic shadowcopy delete /nointeractive
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2532
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2104
- C:\Windows\system32\cmd.exe
  cmd /c vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:3304
- C:\Windows\system32\cmd.exe
  cmd /c bcdedit /set {default} recoveryenabled No
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2076
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {default} recoveryenabled No
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:2236
- C:\Windows\system32\cmd.exe
  cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {default} bootstatuspolicy ignoreallfailures
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:3272
- C:\Windows\system32\cmd.exe
  cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2940
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:496
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$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;"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:5388
- - 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\2012890814.png /f
    3⤵
    - Sets desktop wallpaper using registry
    PID:2928
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False
    3⤵
    PID:3380

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3904

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\2012890814.png

Filesize
32KB

MD5
3c448ddcee1b63f8aae7d952e5061bdc

SHA1
3163bc4036c9068a56664179b9a0db0bbbce339e

SHA256
ae6bd768e8208c7bd88184f51087c60069345142f7baa779a300b8d366ddc89f

SHA512
5ae3644d243c4f347097dafbd6ffe97e26b85343e8264b2a0f7b099b3f181dc2e9a1c2b572f173a953117a44c055e26cd63025e9d2f2ffe6e3ec408ccb79a58b

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

Filesize
7KB

MD5
d3db44c133970cef61166ea0b066d3eb

SHA1
90928858725de6da6b87d9fd2f78ef991acf77ae

SHA256
1ae234419a1b3413fec4ab3457345080838eab84597183ebbcebb3aa730c3281

SHA512
86ee98ca8e9dec14fa99e25ad5493f05edd88be45b1c57f04cf85a9ac851cb6fc123c86d1a1161c3262a1f4eda191005d5519b64823f73f73700aec65360cc4b

Download Submit
C:\Users\Default\Pictures\GET_YOUR_FILES_BACK.txt

Filesize
1011B

MD5
01188d22b1675e3437b1418e14f4ffab

SHA1
6e7127f3bbfce49485ed8f1acf8f697bcb952818

SHA256
e4b3ac00a0b2eb195b26abffbc4368077384e73393e51605edda17dae05ab7f2

SHA512
6903ae3247f32ad79c60a2062cd6a7bdbf5a7c9db1bdc43bdbef4da3396945014d30968ea4c8531a2d0c7b695f1ea36e2b8c51bb39cc6157c4096ac04a6e187d

Download Submit
memory/496-2166-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download
memory/496-2177-0x0000000002760000-0x0000000002768000-memory.dmp

Filesize
32KB

Download
memory/5388-24562-0x000000001B790000-0x000000001BA72000-memory.dmp

Filesize
2.9MB

Download
memory/5388-24563-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download