059911b76bb575a79ccdef1940869c6360c65a710d47257a3901cea805cef3be

Analysis

max time kernel
132s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 11:23

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General

Target
VirusShare_54bcf41f53085b004a070847e623fcd3.exe
Size 329KB
Sample240610-nhc8sshd76
SHA256 059911b76bb575a79ccdef1940869c6360c65a710d47257a3901cea805cef3be
MD5 54bcf41f53085b004a070847e623fcd3
SHA1 d646c97f676ead19d6722eb5bfc73ea0098ec11d
SHA512 da690447462f9bbc10484ff36f30784f6103fe42be6f1235bdb31212d07ae8b34ddbd2730ce4f44cb2f9a8d2f138704ac4c9d7b0e299dffb5bd9fa287c634908
SSDEEP 6144:cMJTbuEB33TmIoqWWiNO8cTjGtxBOgl5FvR6rnDzldxMZty9ljV5HEMy:c0T3jmVjW4O5TYrfFva1dxMZozjV5U
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

defense_evasion execution impact persistence ransomware spyware stealer

Malware Config

Extracted

Path

C:\Program Files\7-Zip\Lang\howto_recover_files_dlwak.txt

Ransom Note

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! What happened to your files ? All of your files were protected by a strong encryption with RSA-2048. More information about the encryption keys using RSA-2048 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) What does this mean ? This means that the structure and data within your files have been irrevocably changed, you will not be able to work with them, read them or see them, it is the same thing as losing them forever, but with our help, you can restore them. How did this happen ? Especially for you, on our server was generated the secret key pair RSA-2048 - public and private. All your files were encrypted with the public key, which has been transferred to your computer via the Internet. Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server. What do I do ? Alas, if you do not take the necessary measures for the specified time then the conditions for obtaining the private key will be changed. If you really value your data, then we suggest you do not waste valuable time searching for other solutions because they do not exist. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://rtldkdh6.kghw88gh3eu.net/69F4D0D687D8292 2. http://jsdf2wevw2.wrt23wqw34.net/69F4D0D687D8292 3. https://7vhbukzxypxh3xfy.onion.to/69F4D0D687D8292 If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser and wait for initialization. 3. Type in the address bar: 7vhbukzxypxh3xfy.onion/69F4D0D687D8292 4. Follow the instructions on the site. IMPORTANT INFORMATION: Your personal pages: http://rtldkdh6.kghw88gh3eu.net/69F4D0D687D8292 http://jsdf2wevw2.wrt23wqw34.net/69F4D0D687D8292 https://7vhbukzxypxh3xfy.onion.to/69F4D0D687D8292 Your personal page (using TOR): 7vhbukzxypxh3xfy.onion/69F4D0D687D8292 Your personal identification number (if you open the site (or TOR 's) directly): 69F4D0D687D8292

URLs

http://rtldkdh6.kghw88gh3eu.net/69F4D0D687D8292
http://jsdf2wevw2.wrt23wqw34.net/69F4D0D687D8292
https://7vhbukzxypxh3xfy.onion.to/69F4D0D687D8292
http://7vhbukzxypxh3xfy.onion/69F4D0D687D8292

Signatures

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	VirusShare_54bcf41f53085b004a070847e623fcd3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	vcwdng.exe

Drops startup file 4 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\howto_recover_files_dlwak.html	vcwdng.exe

Executes dropped EXE 1 IoCs

pid	Process
3668	vcwdng.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\helper_xgcv = "C:\\Users\\Admin\\AppData\\Roaming\\vcwdng.exe"	vcwdng.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\helper_xgcv = "C"	vcwdng.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
8	myexternalip.com

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\Assets\contrast-black\MedTile.scale-200_contrast-black.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\Assets\contrast-white\BadgeLogo.scale-100_contrast-white.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderLogoExtensions.targetsize-24.png	vcwdng.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1036\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\Assets\contrast-black\PeopleAppList.targetsize-256_altform-unplated.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.scale-100.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.NET.Native.Framework.2.2_2.2.27405.0_x64__8wekyb3d8bbwe\AppxMetadata\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsStore_11910.1002.5.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\LibrarySquare71x71Logo.scale-100.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\ru-RU\View3d\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-black\OneNoteAppList.targetsize-30_altform-unplated.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-80.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.targetsize-60_altform-unplated_contrast-black.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\HxA-Yahoo-Dark.scale-100.png	vcwdng.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\lg\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\be-BY\View3d\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_split.scale-125_8wekyb3d8bbwe\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Thumbnails\Sticker_Icon_PigNose.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\ReactAssets\assets\RNApp\app\uwp\images\import_google_contacts\googleImportError.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\Assets\AppTiles\StoreAppList.scale-200.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Transit\contrast-white\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\kab\LC_MESSAGES\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppPackageBadgeLogo.scale-100_contrast-white.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-20_contrast-black.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\bn-BD\View3d\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\sl-SI\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\Assets\Images\SkypeWideTile.scale-200.png	vcwdng.exe
File opened for modification	C:\Program Files\Common Files\System\ado\fr-FR\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\mr\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-black\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\AppxMetadata\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\Internet Explorer\en-US\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-white\Weather_SplashScreen.scale-200.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-black\OneNoteAppList.targetsize-40_altform-unplated.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\x86\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\LargeTile.scale-100.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-48_altform-unplated_contrast-white.png	vcwdng.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\110.0.5481.104\MEIPreload\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\TRANSLAT\ESEN\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.DesktopAppInstaller_1.0.30251.0_neutral_split.scale-100_8wekyb3d8bbwe\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\WideTile.scale-125.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\InsiderHubAppList.scale-100_contrast-black.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-white\MapsAppList.targetsize-64_altform-unplated_contrast-white.png	vcwdng.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.scale-180.png	vcwdng.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\PAPYRUS\THMBNAIL.PNG	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.XboxApp_48.49.31001.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\GamesXboxHubSmallTile.scale-200.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.YourPhone_0.19051.7.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\AppTiles\contrast-white\WideTile.scale-125_contrast-white.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\Assets\GetStartedAppList.targetsize-64.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.targetsize-36.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\GenericMailLargeTile.scale-200.png	vcwdng.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\EDGE\howto_recover_files_dlwak.html	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\contrast-black\LargeLogo.scale-100_contrast-black.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Work\RTL\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxCalendarBadge.scale-125.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherIcons\30x30\175.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\HxA-Exchange.scale-100.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-30_altform-unplated.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Car\LTR\contrast-black\MedTile.scale-100.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\ReactAssets\assets\RNApp\app\uwp\images\meetings-chat-upsell.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\Assets\TinyTile.scale-200_contrast-white.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\howto_recover_files_dlwak.txt	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Assets\NewNotePlaceholder-dark.png	vcwdng.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\StopwatchMedTile.contrast-white_scale-100.png	vcwdng.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 2 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
2376	vssadmin.exe
532	vssadmin.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\Local Settings	vcwdng.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3260	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe
3668	vcwdng.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	VirusShare_54bcf41f53085b004a070847e623fcd3.exe
Token: SeDebugPrivilege	3668	vcwdng.exe
Token: SeBackupPrivilege	5032	vssvc.exe
Token: SeRestorePrivilege	5032	vssvc.exe
Token: SeAuditPrivilege	5032	vssvc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 3668	4880	VirusShare_54bcf41f53085b004a070847e623fcd3.exe	92
PID 4880 wrote to memory of 3668	4880	VirusShare_54bcf41f53085b004a070847e623fcd3.exe	92
PID 4880 wrote to memory of 3668	4880	VirusShare_54bcf41f53085b004a070847e623fcd3.exe	92
PID 4880 wrote to memory of 3688	4880	VirusShare_54bcf41f53085b004a070847e623fcd3.exe	93
PID 4880 wrote to memory of 3688	4880	VirusShare_54bcf41f53085b004a070847e623fcd3.exe	93
PID 4880 wrote to memory of 3688	4880	VirusShare_54bcf41f53085b004a070847e623fcd3.exe	93
PID 3668 wrote to memory of 532	3668	vcwdng.exe	96
PID 3668 wrote to memory of 532	3668	vcwdng.exe	96
PID 3668 wrote to memory of 3260	3668	vcwdng.exe	110
PID 3668 wrote to memory of 3260	3668	vcwdng.exe	110
PID 3668 wrote to memory of 3260	3668	vcwdng.exe	110
PID 3668 wrote to memory of 3908	3668	vcwdng.exe	111
PID 3668 wrote to memory of 3908	3668	vcwdng.exe	111
PID 3668 wrote to memory of 2376	3668	vcwdng.exe	112
PID 3668 wrote to memory of 2376	3668	vcwdng.exe	112

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	vcwdng.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	vcwdng.exe

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\VirusShare_54bcf41f53085b004a070847e623fcd3.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_54bcf41f53085b004a070847e623fcd3.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Users\Admin\AppData\Roaming\vcwdng.exe
  C:\Users\Admin\AppData\Roaming\vcwdng.exe
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Program Files directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:3668
- - C:\Windows\System32\vssadmin.exe
    "C:\Windows\System32\vssadmin.exe" delete shadows /all /Quiet
    3⤵
    - Interacts with shadow copies
    PID:532
- - C:\Windows\SysWOW64\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\howto_recover_files.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:3260
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\howto_recover_files.html
    3⤵
    PID:3908
- - C:\Windows\System32\vssadmin.exe
    "C:\Windows\System32\vssadmin.exe" delete shadows /all /Quiet
    3⤵
    - Interacts with shadow copies
    PID:2376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\VIRUSS~1.EXE >> NUL
  2⤵
  PID:3688

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5032

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4008,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=4140 /prefetch:8
1⤵
PID:1996

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=17 --field-trial-handle=2728,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=4792 /prefetch:1
1⤵
PID:4864

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=16 --field-trial-handle=3600,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=5028 /prefetch:1
1⤵
PID:2712

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=18 --field-trial-handle=5108,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=5444 /prefetch:1
1⤵
PID:4404

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=entity_extraction_service.mojom.Extractor --lang=en-US --service-sandbox-type=entity_extraction --onnx-enabled-for-ee --no-appcompat-clear --field-trial-handle=5552,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=5584 /prefetch:8
1⤵
PID:2492

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=20 --field-trial-handle=5944,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=5828 /prefetch:1
1⤵
PID:4172

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_search_indexer.mojom.SearchIndexerInterfaceBroker --lang=en-US --service-sandbox-type=search_indexer --message-loop-type-ui --no-appcompat-clear --field-trial-handle=5672,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=5640 /prefetch:8
1⤵
PID:3320

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=5576,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=6180 /prefetch:8
1⤵
PID:4408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

howto_recover_files_dlwak.html

Path C:\Program Files\7-Zip\Lang\howto_recover_files_dlwak.html
Size 5KB
SHA256 2c27efa9ea68beade332f49e477c856b5fa33a32a73169224d9efa7c8c03bb67
MD5 2680e87d3cabe0df323354b0a7dde3fd
SHA1 42ec73a349ea199a95b80b834effd01aaa161f16
SHA512 313bfc90f7c19e74d7b8d8c0dca92dcc216775e96e1ff5bb66f58e7a436fe242d62b08469ae472290c97402c38e70391a4fa0fa0ec2772514dad56e7f6a892b6
SSDEEP 96:8m1hxEDl1ZjuTXd30dCd4dQYQdJd5dLyd4edLHVTugDm5ziZwGUtKOgVFLX4QiKD:JL6Dwt3qM+QrLro4o7Qjim6OgVBf+eqU
MD5 SHA1 SHA512 SSDEEP

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howto_recover_files_dlwak.txt

Path C:\Program Files\7-Zip\Lang\howto_recover_files_dlwak.txt
Size 2KB
SHA256 2b28d6931a2ee2be8e2899a94e8407bf083bc3604c7b1874fad9885f23fc762a
MD5 aaea9cd48f271519971b09f6f00fd73b
SHA1 1d6a1e4a51030bec7fb3a190e265f762ec880676
SHA512 a0d976853b25c2be6ce0f6ea73c8d131fff1bf17376fd7309f73c096fbcb31da2ef8ac6b1483406aca005fd529b5d067b02220fbe87034e73ad491e219372935
MD5 SHA1 SHA512

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vcwdng.exe

Path C:\Users\Admin\AppData\Roaming\vcwdng.exe
Size 329KB
SHA256 059911b76bb575a79ccdef1940869c6360c65a710d47257a3901cea805cef3be
MD5 54bcf41f53085b004a070847e623fcd3
SHA1 d646c97f676ead19d6722eb5bfc73ea0098ec11d
SHA512 da690447462f9bbc10484ff36f30784f6103fe42be6f1235bdb31212d07ae8b34ddbd2730ce4f44cb2f9a8d2f138704ac4c9d7b0e299dffb5bd9fa287c634908
SSDEEP 6144:cMJTbuEB33TmIoqWWiNO8cTjGtxBOgl5FvR6rnDzldxMZty9ljV5HEMy:c0T3jmVjW4O5TYrfFva1dxMZozjV5U
MD5 SHA1 SHA512 SSDEEP

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memory/3668-5455-0x0000000000400000-0x000000000067E000-memory.dmp

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memory/3668-7068-0x0000000000400000-0x000000000067E000-memory.dmp

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memory/3668-11-0x0000000000400000-0x000000000067E000-memory.dmp

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memory/3668-13-0x0000000000710000-0x0000000000713000-memory.dmp

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memory/3668-7077-0x0000000000400000-0x000000000067E000-memory.dmp

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memory/3668-7078-0x0000000074D80000-0x0000000074DB9000-memory.dmp

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memory/3668-16-0x0000000074D80000-0x0000000074DB9000-memory.dmp

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memory/3668-7075-0x0000000000400000-0x000000000067E000-memory.dmp

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memory/4880-14-0x0000000000400000-0x000000000067E000-memory.dmp

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memory/4880-0-0x0000000000710000-0x0000000000713000-memory.dmp

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memory/4880-2-0x0000000000400000-0x000000000067E000-memory.dmp

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memory/4880-4-0x0000000000720000-0x0000000000723000-memory.dmp

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memory/4880-15-0x0000000074D80000-0x0000000074DB9000-memory.dmp

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memory/4880-5-0x0000000074D80000-0x0000000074DB9000-memory.dmp

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