Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
02-03-2024 05:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe
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Size
664KB
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MD5
27b6871781a6f167dc47e5ef5e3a3d6f
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SHA1
882cf9ffa4f734ed9fa03ffc4b3850eebd2c56a9
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SHA256
204e1125aab1074be4218c963c61a1dec1af0dd0b8df051f02d38fee15c623a3
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SHA512
95c37f097eb841f5770cbdcc44b38aebbefcb2a4fb1e4e6903a8b051a841f8dd94a77a4734807685d2c682cc00ea547367684d9986c135d89be1b68a34bc0352
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SSDEEP
12288:Ts9LjX1SoCU5qJSr1eJYUZ5isO0+ZNtgkAYHUzTshLkwEsYO+:gZSoCU5qJSr1eJYrv0+ZNtgkpeTcC
Malware Config
Signatures
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Azov
A wiper seeking only damage, first seen in 2022.
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Renames multiple (1499) 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 2 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
Processes:
2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bandera = "C:\\ProgramData\\rdpclient.exe" 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exedescription ioc process File opened (read-only) \??\A: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\J: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\M: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\X: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\O: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\Q: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\R: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\T: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\B: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\G: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\H: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\I: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\Z: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\E: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\L: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\N: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\W: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\V: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\Y: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\K: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\P: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\S: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened (read-only) \??\U: 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe -
Drops file in Program Files directory 64 IoCs
Processes:
2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exedescription ioc process File opened for modification C:\Program Files\Windows Mail\wab.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateSetup.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files (x86)\Common Files\Java\Java Update\jucheck.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\jdk\xerces.md 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-ul-phn.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Windows Media Player\wmplayer.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest2-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial4-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\dotnet\swidtag\Microsoft Windows Desktop Runtime - 6.0.25 (x64).swidtag 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\VisualElements\SmallLogoBeta.png 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Trial-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-pl.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-phn.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ul-oob.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\icudtl.dat 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\InputPersonalization.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\ktab.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-000F-0000-1000-0000000FF1CE}\osmclienticon.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\jdk\dom.md 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files (x86)\Windows Media Player\setup_wm.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest2-ul-oob.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\deploy\messages_zh_TW.properties 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProDemoR_BypassTrial180-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Trial-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\sv.pak 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\calendars.properties 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\jdk\asm.md 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\jdk\libpng.md 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial2-pl.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial1-pl.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\hwrlatinlm.dat 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\javafx\directshow.md 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\lib\jvm.lib 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\legal\javafx\mesa3d.md 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial-ul-oob.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-ul-oob.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\7-Zip\7z.sfx 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipssrl.xml 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\ar.pak 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\VisualElements\Logo.png 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File created C:\Program Files\Internet Explorer\SIGNUP\RESTORE_FILES.txt 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Grunge Texture.eftx 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\ext\dnsns.jar 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red Violet.xml 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription2-ul-oob.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_Subscription-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\et-EE\RESTORE_FILES.txt 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_LinkNoDrop32x32.gif 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ul-oob.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest3-ppd.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\management\snmp.acl.template 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-pl.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTrial-pl.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ka.txt 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsdan.xml 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-ul-oob.xrm-ms 2024-03-02_27b6871781a6f167dc47e5ef5e3a3d6f_ryuk.exe
Processes
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD578ede93114e65f9160fd03d3357c56e6
SHA188d531b101e57655f1d0d26c6b3257aa2468d460
SHA256c97412fbf88da8f91099a52888dea4c3f222cd95af3e681e3271cbca8b6b7bb5
SHA512074a4c741273902ccacb6f573b96d8accedb2ee405dbd04350cdbf54d180c1fd577a4e90c2aae26bf72f3782403f4494db6e3501a04cfd9d7d81a6bc14884b9d