Analysis
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max time kernel
142s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
05-06-2024 21:05
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe
Resource
win10v2004-20240226-en
General
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Target
2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe
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Size
664KB
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MD5
8a4b49ead004283b8c8f5324dbf93189
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SHA1
8efe54837faf263d1f336d3b4da24cf497f614bd
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SHA256
a68fac4e3592ccf103c7db6d5302634233f4fce7a4341f0696fe52512d401512
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SHA512
571950c149095cff7fff2e61d5fb68756e7946b8d189307790b02b1a19c94f978b405cbe68637b4a811fcdfc76508e6d4cdb308d91e28b51193bb12a662fc081
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SSDEEP
12288:Ls9YrzrSoCU5qJSr1eJXU3L0amgJmw6gqAHHUzTshcvNQC:frSoCU5qJSr1eJXNhgJmw6gqmeTZvNj
Malware Config
Signatures
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Azov
A wiper seeking only damage, first seen in 2022.
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Renames multiple (158) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bandera = "C:\\ProgramData\\rdpclient.exe" 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_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:
2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exedescription ioc process File opened (read-only) \??\Q: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\T: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\A: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\B: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\J: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\L: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\E: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\K: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\O: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\U: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\R: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\S: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\V: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\W: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\G: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\H: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\I: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\N: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\X: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\Y: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\Z: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\M: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened (read-only) \??\P: 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe -
Drops file in Program Files directory 64 IoCs
Processes:
2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exedescription ioc process File opened for modification C:\Program Files\7-Zip\Lang\an.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-GB\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsfin.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\System\ado\adojavas.inc 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\fr-FR\sqloledb.rll.mui 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\License.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad\auxbase.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\VSTO\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\System\ado\msado27.tlb 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\System\ado\msado28.tlb 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ky.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\el.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\id.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\ro-RO\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\chrome.7z 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsid.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.25\tr\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_altgr.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\insert\insertbase.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ca.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\de-DE\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\OFFICE16\Office Setup Controller\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\System\Ole DB\en-US\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\mng2.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spc.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\EnableCheckpoint.DVR 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsel.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\sqloledb.rll 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\dotnet\host\fxr\8.0.0\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipstr.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.0\.version 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\sl.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\es-MX\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\kor-kor.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\dotnet\dotnet.exe 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\oskclearuibase.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\dotnet\swidtag\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.0\fr\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\en-US\sqlxmlx.rll.mui 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\System\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Google\Chrome\Application\106.0.5249.119\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\cs.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_100_percent.pak 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\gu.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spl.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\ja-jp-sym.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipscat.xml 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zCon.sfx 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\hi.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ro.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\System\ado\msado26.tlb 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\dotnet\swidtag\Microsoft Windows Desktop Runtime - 8.0.0 (x64).swidtag 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\mr.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\DESIGNER\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ku-ckb.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\nn.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\fr-FR\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File opened for modification C:\Program Files\Common Files\System\ado\msadox28.tlb 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe File created C:\Program Files\Common Files\System\msadc\it-IT\RESTORE_FILES.txt 2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-05_8a4b49ead004283b8c8f5324dbf93189_ryuk.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
PID:1448
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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 --mojo-platform-channel-handle=1340 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:81⤵PID:3348
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD578ede93114e65f9160fd03d3357c56e6
SHA188d531b101e57655f1d0d26c6b3257aa2468d460
SHA256c97412fbf88da8f91099a52888dea4c3f222cd95af3e681e3271cbca8b6b7bb5
SHA512074a4c741273902ccacb6f573b96d8accedb2ee405dbd04350cdbf54d180c1fd577a4e90c2aae26bf72f3782403f4494db6e3501a04cfd9d7d81a6bc14884b9d