Analysis Overview
SHA256
3c848d6123bfb14ad845243fcccc754b3afedac7cf5bfcfddc0459586ef3768d
Threat Level: Known bad
The file testing.exe was found to be: Known bad.
Malicious Activity Summary
Avoslocker family
Avoslocker Ransomware
Deletes shadow copies
Modifies boot configuration data using bcdedit
Renames multiple (10387) files with added filename extension
Checks computer location settings
Executes dropped EXE
Drops desktop.ini file(s)
Enumerates connected drives
Sets desktop wallpaper using registry
Drops file in Program Files directory
Command and Scripting Interpreter: PowerShell
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Uses Volume Shadow Copy service COM API
Opens file in notepad (likely ransom note)
Suspicious use of WriteProcessMemory
Interacts with shadow copies
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-25 13:46
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-25 13:46
Reported
2024-12-25 13:48
Platform
win7-20241010-en
Max time kernel
120s
Max time network
122s
Command Line
Signatures
Avoslocker Ransomware
Avoslocker family
Deletes shadow copies
Modifies boot configuration data using bcdedit
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\bcdedit.exe | N/A |
| N/A | N/A | C:\Windows\system32\bcdedit.exe | N/A |
Renames multiple (10387) files with added filename extension
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\Z: | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| 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" | C:\Windows\system32\reg.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\fr-FR\css\GET_YOUR_FILES_BACK.txt | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\images\bPrev-down.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Windows Media Player\de-DE\WMPDMC.exe.mui | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\release | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\Europe\Volgograd | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Argentina\Cordoba | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\ja-JP\gadget.xml | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Media Player\fr-FR\setup_wm.exe.mui | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.JP.XML | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\TEXTBOX.JPG | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\TaskbarIconImages256Colors.bmp | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\America\Thule | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| 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 | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\RCLRPT.CFG | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR1F.GIF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA02405_.WMF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Common Files\System\Ole DB\es-ES\msdasqlr.dll.mui | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Boa_Vista | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Effects\Opulent.eftx | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\Publisher\Backgrounds\WB00703L.GIF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| 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 | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web\webbase.xml | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0232393.WMF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02743G.GIF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File created | C:\Program Files (x86)\Internet Explorer\SIGNUP\GET_YOUR_FILES_BACK.txt | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_moon-last-quarter.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| 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 | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\NavigationUp_ButtonGraphic.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\hwresmlm.dat | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_box_divider_left.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR45B.GIF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR50F.GIF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\HH00241_.WMF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0309480.JPG | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\images\item_hover_floating.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\NOTICE | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\it-IT\TipRes.dll.mui | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ps.txt | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0215076.WMF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\en-US\picturePuzzle.html | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| 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 | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows NT\TableTextService\it-IT\TableTextService.dll.mui | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGPICCAP.DPV | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\FS3BOX.POC | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\macroprogress.gif | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\IN00233_.WMF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0102594.WMF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\flyout.html | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\settings_corner_bottom_left.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Antarctica\Rothera | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\1047x576black.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\logo.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File created | C:\Program Files\VideoLAN\VLC\locale\kk\GET_YOUR_FILES_BACK.txt | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Circle_SelectionSubpictureB.png | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Defender\fr-FR\MpEvMsg.dll.mui | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Defender\en-US\MpAsDesc.dll.mui | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\EmbeddedView.jpg | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Document Themes 14\Apothecary.thmx | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD00419_.WMF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\DefaultID.pdf | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File created | C:\Program Files\Windows Photo Viewer\GET_YOUR_FILES_BACK.txt | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18196_.WMF | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Document Themes 14\Concourse.thmx | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\en-US\css\calendar.css | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Interacts with shadow copies
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\vssadmin.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\testing.exe
"C:\Users\Admin\AppData\Local\Temp\testing.exe"
C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
"C:\Users\Admin\AppData\Local\Temp\temp_executable.exe"
C:\Windows\system32\cmd.exe
cmd /c wmic shadowcopy delete /nointeractive
C:\Windows\system32\cmd.exe
cmd /c vssadmin.exe Delete Shadows /All /Quiet
C:\Windows\system32\cmd.exe
cmd /c bcdedit /set {default} recoveryenabled No
C:\Windows\system32\cmd.exe
cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
C:\Windows\system32\cmd.exe
cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled No
C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
C:\Windows\system32\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete /nointeractive
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -Command "$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;"
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
C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False
Network
Files
C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
| MD5 | e27b5291c8fb2dfdeb7f16bb6851df5e |
| SHA1 | 40207f83b601cd60905c1f807ac0889c80dfe33f |
| SHA256 | ffd933ad53f22a0f10cceb4986087258f72dffdd36999b7014c6b37c157ee45f |
| SHA512 | 2ddbc50cd780ffbf73c354b9b437322eb49cb05bb6f287d54e7dcafb61dc4c4549e37ae2f972f3d240bfa7d2ca485b7583137f1bf038bc901f378cea0c305c6a |
memory/2560-5-0x000000013F1A0000-0x000000013F2BE000-memory.dmp
C:\Users\GET_YOUR_FILES_BACK.txt
| MD5 | c92c2b70fb37f84aab38412ad9226aa8 |
| SHA1 | 14f2e9a83285612d0a7b2c83b8f89bccfde6c154 |
| SHA256 | d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f |
| SHA512 | 04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848 |
memory/1572-952-0x000000001B760000-0x000000001BA42000-memory.dmp
memory/1572-983-0x0000000001E80000-0x0000000001E88000-memory.dmp
\??\PIPE\srvsvc
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
| MD5 | 90e25ae7ffc92b5e12a6b6c37a793e69 |
| SHA1 | 8b6580e1a8c43e2929cf79a61058e633d7ae9faf |
| SHA256 | 74ac0314e4c1423b205dc9530801f3b7478b76d73a3e4e77982befc28c973843 |
| SHA512 | 17a9fb39be189b8e6c26df8f8cc006ef320c1dbbd5ba28418221778a16bfe7cac8de4c74e0df4433daeb4e193941252368863509a8627cea86475a1ce7487fcb |
memory/5676-24527-0x000000001B760000-0x000000001BA42000-memory.dmp
memory/5676-24528-0x0000000001D90000-0x0000000001D98000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-25 13:46
Reported
2024-12-25 13:47
Platform
win10v2004-20241007-en
Max time kernel
0s
Max time network
13s
Command Line
Signatures
Deletes shadow copies
Modifies boot configuration data using bcdedit
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\bcdedit.exe | N/A |
| N/A | N/A | C:\Windows\system32\bcdedit.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\testing.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\Z: | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Interacts with shadow copies
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\vssadmin.exe | N/A |
Opens file in notepad (likely ransom note)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\NOTEPAD.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\temp_executable.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\testing.exe
"C:\Users\Admin\AppData\Local\Temp\testing.exe"
C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
"C:\Users\Admin\AppData\Local\Temp\temp_executable.exe"
C:\Windows\SYSTEM32\cmd.exe
cmd /c wmic shadowcopy delete /nointeractive
C:\Windows\SYSTEM32\cmd.exe
cmd /c vssadmin.exe Delete Shadows /All /Quiet
C:\Windows\SYSTEM32\cmd.exe
cmd /c bcdedit /set {default} recoveryenabled No
C:\Windows\SYSTEM32\cmd.exe
cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
C:\Windows\SYSTEM32\cmd.exe
cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete /nointeractive
C:\Windows\system32\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled No
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\GET_YOUR_FILES_BACK.txt
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.130.81.91.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\temp_executable.exe
| MD5 | e27b5291c8fb2dfdeb7f16bb6851df5e |
| SHA1 | 40207f83b601cd60905c1f807ac0889c80dfe33f |
| SHA256 | ffd933ad53f22a0f10cceb4986087258f72dffdd36999b7014c6b37c157ee45f |
| SHA512 | 2ddbc50cd780ffbf73c354b9b437322eb49cb05bb6f287d54e7dcafb61dc4c4549e37ae2f972f3d240bfa7d2ca485b7583137f1bf038bc901f378cea0c305c6a |
memory/912-7-0x00007FF696D00000-0x00007FF696E1E000-memory.dmp
F:\GET_YOUR_FILES_BACK.txt
| MD5 | c92c2b70fb37f84aab38412ad9226aa8 |
| SHA1 | 14f2e9a83285612d0a7b2c83b8f89bccfde6c154 |
| SHA256 | d64639e873c0873b469cd856d1ef4bce7dc14a80fac6fe2bed9d629f05acc77f |
| SHA512 | 04f9dcb3cd49909712535255b6eadd7fafcb2902bf1abd5a25e9bb5f5c4dc032611aec0a5b0ec89cd7dbc65276b935c54b906b391507d2e3e3aa65466b15f848 |
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_31l2ccth.4ey.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/3800-17571-0x000001B6B45E0000-0x000001B6B4602000-memory.dmp