Analysis
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max time kernel
136s -
max time network
107s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 00:40
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe
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Size
6.5MB
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MD5
b955ff7526cb8253670de67c2025183f
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SHA1
47051bca76d66baa92fb1cd45300f922a1bfc334
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SHA256
03c95a76db0ed5bab25c519a3146c0c5d70684012efc7a3ceda2869f85fb1389
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SHA512
15df2c2d854c2790dc2658c849e34540595fef16bf5577651c2a4a0ef8cd83e3bcb22a1d0b5cf36b20d293167537c04b5348bf0c4eac181b217246e0bbf3a6a8
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SSDEEP
98304:DI9tiSH6a6gfFCZ8th/yp3qvZ4ypOKRxoBBTxBQk6dtQ:DAH6aff4+4p84yjRyBNxqQ
Malware Config
Signatures
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Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe -
Executes dropped EXE 1 IoCs
pid Process 4880 14455f59554848a394762d31aa6d7c35.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe File opened for modification C:\Windows\assembly\Desktop.ini 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly\Desktop.ini 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe File opened for modification C:\Windows\assembly 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe File created C:\Windows\assembly\Desktop.ini 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3432 wrote to memory of 4880 3432 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe 85 PID 3432 wrote to memory of 4880 3432 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe 85 PID 3432 wrote to memory of 4880 3432 2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-27_b955ff7526cb8253670de67c2025183f_avoslocker_revil.exe"1⤵
- Drops file in Drivers directory
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3432 -
C:\Users\Admin\AppData\Local\Temp\14455f59554848a394762d31aa6d7c35.exe"C:\Users\Admin\AppData\Local\Temp\14455f59554848a394762d31aa6d7c35.exe" --012⤵
- Executes dropped EXE
PID:4880
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
6.0MB
MD502e6bf47f5315e8da515ccae63f58a6e
SHA13469eec2964080610b188eceabc216a5f0244d2b
SHA256aad9c5c01c5c87d33da0695c53eb0bdae432d41452a2f54ddc1f23eb14928517
SHA512949bf7ff8eaa37a0c036af580f6bde633aec5336312f1c96d879aaf2398ee05f82a9d84ce002937b95382bedf2e7143e894b8d0feec478d074a1a3e1baf1d031