Analysis
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max time kernel
93s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
06/03/2025, 17:08
Static task
static1
Behavioral task
behavioral1
Sample
2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe
Resource
win10v2004-20250217-en
General
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Target
2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe
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Size
664KB
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MD5
581b4a169b1d11d5722d0b95652c4d72
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SHA1
e0f096905b10f064322469161261b5debee0cf5e
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SHA256
1b9212169964de38cc4cdca81ad08035309bd7eb633095c8e1319a0d06c20630
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SHA512
06e4d3dc738ad71773bdd9a5907ad7d1654155123654f50a7fe0ad75504bd6cfabc0572b7eb5386c2edf8c14fd1716954ee0247c1aa1b54e6ec5100c0a3e2332
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SSDEEP
12288:Ts9tAJdSoCU5qJSr1erWUM6i6FZJFzFgkAHHUzTshm8QvDF0Bc:OKSoCU5qJSr1erWzaZJFzFgkqeTIkD6c
Malware Config
Signatures
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Azov
A wiper seeking only damage, first seen in 2022.
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Azov family
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Renames multiple (511) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bandera = "C:\\ProgramData\\rdpclient.exe" 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\W: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\E: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\Q: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\U: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\X: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\A: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\G: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\H: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\L: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\S: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\Z: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\B: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\M: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\O: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\T: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\V: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\Y: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\P: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\I: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\J: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\K: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\N: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\R: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ur.pak 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\management\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Common Files\System\msadc\en-US\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Common Files\System\Ole DB\de-DE\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Windows Media Player\wmprph.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\management\jmxremote.password.template 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\VSTO\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\javafx\mesa3d.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\LogoBeta.png 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main.xml 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols.xml 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\security\trusted.libraries 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\javafx\mesa3d.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\legal\javafx\jpeg_fx.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.WindowsDesktop.App.deps.json 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\en-US\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\dotnet\host\fxr\6.0.27\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jjs.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\flavormap.properties 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\legal\jdk\relaxngdatatype.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\7-Zip\Lang\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad.xml 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\jdk\icu.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\deploy\splash_11-lic.gif 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_MoveDrop32x32.gif 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\THIRDPARTYLICENSEREADME.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\javafx\icu_web.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.WindowsDesktop.App.runtimeconfig.json 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javapackager.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\Install\{B535E447-C6E0-400A-8DAD-5A6702A40405}\MicrosoftEdgeUpdateSetup_X86_1.3.195.43.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\ext\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\gu.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\zh-cn.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\javaws.jar 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\jdk\joni.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\keytool.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\javafx\icu_web.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\serialver.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\wsimport.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\th.pak 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Java\jdk-1.8\legal\javafx\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\dotnet\swidtag\Microsoft Windows Desktop Runtime - 8.0.2 (x64).swidtag 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\ext\localedata.jar 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\hwrdeush.dat 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\javafx\gstreamer.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\lij.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\te.pak 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\oledbjvs.inc 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe
Processes
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD578ede93114e65f9160fd03d3357c56e6
SHA188d531b101e57655f1d0d26c6b3257aa2468d460
SHA256c97412fbf88da8f91099a52888dea4c3f222cd95af3e681e3271cbca8b6b7bb5
SHA512074a4c741273902ccacb6f573b96d8accedb2ee405dbd04350cdbf54d180c1fd577a4e90c2aae26bf72f3782403f4494db6e3501a04cfd9d7d81a6bc14884b9d