Analysis
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max time kernel
142s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
20-04-2024 00:05
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe
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Size
664KB
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MD5
1b339b557f7d5291fdafb0c7e9b04a87
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SHA1
63455745122b4f7347017552bfd375728d52105c
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SHA256
3a732b3c5dc21123aa388ca1d7966ca412490f65ac5d05c11d698549a9372993
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SHA512
2ce1b2bf90beffa52f843d5e8d2cb5466e881d060a0ac3307867785992b42c744894f51c408064f74415264260c865873e127931883b7c903310ee08f7153ae0
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SSDEEP
12288:zs9FFiUSoCU5qJSr1e2UULlrFXII4NZCglApHUzTshEx9ZOpaKGFkFp6woJ:W/SoCU5qJSr1e2UUiI4NZCgl8eTvtO9Y
Malware Config
Signatures
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Azov
A wiper seeking only damage, first seen in 2022.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bandera = "C:\\ProgramData\\rdpclient.exe" 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_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:
2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exedescription ioc process File opened (read-only) \??\Y: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\E: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\T: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\V: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\X: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\L: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\O: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\P: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\R: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\G: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\H: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\I: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\K: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\S: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\W: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\Z: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\B: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\J: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\M: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\N: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\A: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\Q: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened (read-only) \??\U: 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe -
Drops file in Program Files directory 27 IoCs
Processes:
2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exedescription ioc process File opened for modification C:\Program Files\7-Zip\descript.ion 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\af.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\az.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\co.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\7z.sfx 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\History.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\be.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\br.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zG.exe 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ast.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\bg.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\cy.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\da.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ar.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zCon.sfx 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ca.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\7-zip.chm 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File created C:\Program Files\7-Zip\Lang\RESTORE_FILES.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\an.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ba.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\bn.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\cs.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe File created C:\Program Files\7-Zip\RESTORE_FILES.txt 2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-19_1b339b557f7d5291fdafb0c7e9b04a87_ryuk.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
PID:3016
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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=3744 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:81⤵PID:4484
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD578ede93114e65f9160fd03d3357c56e6
SHA188d531b101e57655f1d0d26c6b3257aa2468d460
SHA256c97412fbf88da8f91099a52888dea4c3f222cd95af3e681e3271cbca8b6b7bb5
SHA512074a4c741273902ccacb6f573b96d8accedb2ee405dbd04350cdbf54d180c1fd577a4e90c2aae26bf72f3782403f4494db6e3501a04cfd9d7d81a6bc14884b9d