Analysis
- max time kernel
149s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
09/04/2023, 15:30
Static task
static1
Behavioral task
behavioral1
Sample
2f8796499a7df61817126eb00c8aedff7b709f7f652503b2b9bd1c6a2f7f61e4.dll
Resource
win7-20230220-en
windows7-x64
3 signatures
150 seconds
Behavioral task
behavioral2
Sample
2f8796499a7df61817126eb00c8aedff7b709f7f652503b2b9bd1c6a2f7f61e4.dll
Resource
win10v2004-20230220-en
windows10-2004-x64
4 signatures
150 seconds
General
- Target 2f8796499a7df61817126eb00c8aedff7b709f7f652503b2b9bd1c6a2f7f61e4.dll
- Size 1.6MB
- Sample230409-sxxcfadd81
- SHA256 2f8796499a7df61817126eb00c8aedff7b709f7f652503b2b9bd1c6a2f7f61e4
- MD5 60da782a5ed59677d062c269d1373f88
- SHA1 36856c69665e3e23d6dae9fda718239b063ba564
- SHA512 1d19acb2b56123f75d391056a5e6e6d7e9ce68da0b17928a7f8343eb593b593af4f38ef22d294c9c645b062e7e01b880f3961482b7d6abe3f6fabe1471534ad2
- SSDEEP 24576:uwSYBfKCg62vthHQ/PIptx0WhkvfV+D9U+z/LWxHkafbTIYK:u1YlKCghvXHQ/PI5xhkFCSyeEajTC
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Path
-
C:\Program Files (x86)\instructions_read_me.txt
Ransom Note
- ATTENTION! Your network has been breached and all data was encrypted. Please contact us at: https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/ Login ID: 66a531a8-86fe-42cf-8a02-0d7e139cfbe2 *!* To access .onion websites download and install Tor Browser at: https://www.torproject.org/ (Tor Browser is not related to us) *!* To restore all your PCs and get your network working again, follow these instructions: - Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. It doesn't matter, who are trying to do this, either it will be your IT guys or a recovery agency. Please follow these simple rules to avoid data corruption: - Do not modify, rename or delete files. Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. - Do not hire a recovery company. They can't decrypt without the key. They also don't care about your business. They believe that they are good negotiators, but it is not. They usually fail. So speak for yourself. Waiting you in a chat.
URLs
-
https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/
Signatures
- Modifies extensions of user files 10 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\GetSet.tif => C:\Users\Admin\Pictures\GetSet.tif.nq89aprn6 rundll32.exe File renamed C:\Users\Admin\Pictures\ProtectRepair.png => C:\Users\Admin\Pictures\ProtectRepair.png.nq89aprn6 rundll32.exe File renamed C:\Users\Admin\Pictures\RenameClear.png => C:\Users\Admin\Pictures\RenameClear.png.nq89aprn6 rundll32.exe File renamed C:\Users\Admin\Pictures\StartCompress.crw => C:\Users\Admin\Pictures\StartCompress.crw.nq89aprn6 rundll32.exe File renamed C:\Users\Admin\Pictures\SuspendSplit.raw => C:\Users\Admin\Pictures\SuspendSplit.raw.nq89aprn6 rundll32.exe File renamed C:\Users\Admin\Pictures\WriteBackup.raw => C:\Users\Admin\Pictures\WriteBackup.raw.nq89aprn6 rundll32.exe File opened for modification C:\Users\Admin\Pictures\ApproveStart.tiff rundll32.exe File renamed C:\Users\Admin\Pictures\ApproveStart.tiff => C:\Users\Admin\Pictures\ApproveStart.tiff.nq89aprn6 rundll32.exe File renamed C:\Users\Admin\Pictures\CheckpointSave.raw => C:\Users\Admin\Pictures\CheckpointSave.raw.nq89aprn6 rundll32.exe File renamed C:\Users\Admin\Pictures\LimitLock.tif => C:\Users\Admin\Pictures\LimitLock.tif.nq89aprn6 rundll32.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAppRuntime.1.2_2000.802.31.0_x64__8wekyb3d8bbwe\Microsoft.Windows.PushNotifications.winmd rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\EdgeUpdate.dat rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\hwrusash.dat rundll32.exe File opened for modification C:\Program Files\Common Files\System\ado\msado26.tlb rundll32.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\jdwp.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Utils.CX.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\MemMDL2.1.85.ttf rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAppRuntime.1.2_2000.802.31.0_x86__8wekyb3d8bbwe\Microsoft.Windows.ApplicationModel.Resources.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Security.Principal.dll rundll32.exe File created C:\Program Files\Microsoft Office\Updates\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAppRuntime.1.2_2000.802.31.0_x86__8wekyb3d8bbwe\marshal.dll rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.uk-ua.dll rundll32.exe File opened for modification C:\Program Files\7-Zip\Lang\uz.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\AdaptiveCards.Rendering.Uwp.lib rundll32.exe File created C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_neutral_~_8wekyb3d8bbwe\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_neutral_split.scale-100_8wekyb3d8bbwe\resources.pri rundll32.exe File opened for modification C:\Program Files\7-Zip\Lang\uk.txt rundll32.exe File opened for modification C:\Program Files\Windows Media Player\es-ES\wmlaunch.exe.mui rundll32.exe File opened for modification C:\Program Files\Windows Photo Viewer\es-ES\PhotoViewer.dll.mui rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\resources.pri rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\AppxSignature.p7x rundll32.exe File opened for modification C:\Program Files\7-Zip\Lang\tt.txt rundll32.exe File opened for modification C:\Program Files\Windows Media Player\Network Sharing\ConnectionManager.xml rundll32.exe File opened for modification C:\Program Files\Windows NT\TableTextService\TableTextServiceYi.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\RuntimeConfiguration.winmd rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\AppxSignature.p7x rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\Xbox.Foundation.Media.dll rundll32.exe File created C:\Program Files\Mozilla Firefox\browser\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.ServiceModel.Web.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Collections.NonGeneric.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\DecoderAppService.dll rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\StreamServer.dll rundll32.exe File opened for modification C:\Program Files\Windows Media Player\de-DE\wmpnetwk.exe.mui rundll32.exe File opened for modification C:\Program Files\7-Zip\Lang\nl.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-150_8wekyb3d8bbwe\resources.pri rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Runtime.InteropServices.WindowsRuntime.dll rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\javac.exe rundll32.exe File opened for modification C:\Program Files\SendMeasure.ico rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\policytool.exe rundll32.exe File opened for modification C:\Program Files\7-Zip\Lang\kab.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Services.Store.Engagement_10.0.18101.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAppRuntime.1.2_2000.802.31.0_x86__8wekyb3d8bbwe\Microsoft.Windows.AppNotifications.Builder.winmd rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\Microsoft.Apps.People.BackgroundTasks.winmd rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-conio-l1-1-0.dll rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\IpsPlugin.dll rundll32.exe File opened for modification C:\Program Files\Common Files\System\it-IT\wab32res.dll.mui rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_neutral_split.scale-100_kzf8qxf38zg5c\AppxBlockMap.xml rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Text.RegularExpressions.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\FreshPaint.Model.CX.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\RNWebViewBridgeObject.winmd rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.UI.Xaml.2.0_2.1810.18004.0_x64__8wekyb3d8bbwe\Microsoft.UI.Xaml.winmd rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAppRuntime.1.2_2000.802.31.0_x86__8wekyb3d8bbwe\Microsoft.WindowsAppRuntime.dll rundll32.exe File opened for modification C:\Program Files\Mozilla Firefox\api-ms-win-crt-environment-l1-1-0.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Services.Store.Engagement_10.0.18101.0_x86__8wekyb3d8bbwe\AppxBlockMap.xml rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00_14.0.27323.0_x64__8wekyb3d8bbwe\vcamp140_app.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe rundll32.exe File created C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\instructions_read_me.txt rundll32.exe - Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.nq89aprn6 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.nq89aprn6\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.nq89aprn6\DefaultIcon rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1184 wrote to memory of 580 1184 rundll32.exe 82 PID 1184 wrote to memory of 580 1184 rundll32.exe 82 PID 1184 wrote to memory of 580 1184 rundll32.exe 82
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2f8796499a7df61817126eb00c8aedff7b709f7f652503b2b9bd1c6a2f7f61e4.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1184 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2f8796499a7df61817126eb00c8aedff7b709f7f652503b2b9bd1c6a2f7f61e4.dll,#12⤵
- Modifies extensions of user files
- Drops file in Program Files directory
- Modifies registry class
PID:580
-
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\instructions_read_me.txt
- Size 1KB
- SHA256 2641dc9c905edd249799f902ef37661d4e105fc38a0767f896fbe6485839a088
- MD5 7e86c63b12f6533d95a2c277fd8b2efe
- SHA1 a9ae78fb3582165036ec4154eb99fd8497e2c156
- SHA512 94f11db7436a73f5db4882120dce00851810fb53cff8d496c6c4875516df7663e73a5c50fbd1762a2dacb3409edff803392ad3c9d3ebd17451f4613693a3d020
- MD5 SHA1 SHA512