Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28/05/2024, 01:03
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe
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Size
6.5MB
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MD5
71b85f8f9bdda0f45c9fd6b22f342142
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SHA1
34bff3acc8f0ef41f586f57d54493a34293ed2b4
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SHA256
3b13956e01f32ecaaefabaa2c17c4b3be4d47299f1f84fc1dd810eb52b3f60d2
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SHA512
b6f7747fbc7fdb185780f7c4b44c148bce5dfc3d424b3cf1f540e2161f72a3df9a2288d81d8716f7a690b980297bc1ab89b497768436d15da21f65a18d03c5d2
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SSDEEP
98304:nI9tiSH6a6gfFCZ8th/yp3qvZ4ypOKRxoBBTxBQk6dtQ:nAH6aff4+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 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe -
Executes dropped EXE 1 IoCs
pid Process 1524 0f776b535afb459fab05aebf04fcdf8d.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 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe File opened for modification C:\Windows\assembly\Desktop.ini 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe File created C:\Windows\assembly\Desktop.ini 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe File opened for modification C:\Windows\assembly\Desktop.ini 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4592 wrote to memory of 1524 4592 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe 86 PID 4592 wrote to memory of 1524 4592 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe 86 PID 4592 wrote to memory of 1524 4592 2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-28_71b85f8f9bdda0f45c9fd6b22f342142_avoslocker_revil.exe"1⤵
- Drops file in Drivers directory
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4592 -
C:\Users\Admin\AppData\Local\Temp\0f776b535afb459fab05aebf04fcdf8d.exe"C:\Users\Admin\AppData\Local\Temp\0f776b535afb459fab05aebf04fcdf8d.exe" --012⤵
- Executes dropped EXE
PID:1524
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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