Analysis
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max time kernel
93s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 01:53
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe
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Size
6.5MB
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MD5
7f44fb0166955c55e003afcb8a856049
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SHA1
d6fd34ee7b78b58f3161dce0adb748a7d4a5f746
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SHA256
ab4e1a5712e923b65fc44b4163c4fe7d2d02677db938f3fe38c90b4f8ffffa7b
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SHA512
5988b75591f0159805c9165cbae2d49b8925c102fe1ba51e58b1bf197ae86322a384817bab5bc90c59fde1419b1f4876dd0f97c03bc60fc432e6befbe432e25d
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SSDEEP
98304:ZI9tiSH6a6gfFCZ8th/yp3qvZ4ypOKRxoBBTxBQk6dtQD:ZAH6aff4+4p84yjRyBNxqQ
Malware Config
Signatures
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Drops file in Drivers directory 1 IoCs
Processes:
2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exedescription ioc process File opened for modification C:\Windows\System32\drivers\etc\hosts 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe -
Executes dropped EXE 1 IoCs
Processes:
ecd6050d206048ba9b5fdb1334f304d1.exepid process 3872 ecd6050d206048ba9b5fdb1334f304d1.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
Processes:
2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exedescription ioc process File created C:\Windows\assembly\Desktop.ini 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe File opened for modification C:\Windows\assembly\Desktop.ini 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe -
Drops file in Windows directory 3 IoCs
Processes:
2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exedescription ioc process File created C:\Windows\assembly\Desktop.ini 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe File opened for modification C:\Windows\assembly\Desktop.ini 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe File opened for modification C:\Windows\assembly 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exedescription pid process target process PID 5088 wrote to memory of 3872 5088 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe ecd6050d206048ba9b5fdb1334f304d1.exe PID 5088 wrote to memory of 3872 5088 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe ecd6050d206048ba9b5fdb1334f304d1.exe PID 5088 wrote to memory of 3872 5088 2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe ecd6050d206048ba9b5fdb1334f304d1.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe"1⤵
- Drops file in Drivers directory
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ecd6050d206048ba9b5fdb1334f304d1.exe"C:\Users\Admin\AppData\Local\Temp\ecd6050d206048ba9b5fdb1334f304d1.exe" --012⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\ecd6050d206048ba9b5fdb1334f304d1.exeFilesize
6.0MB
MD502e6bf47f5315e8da515ccae63f58a6e
SHA13469eec2964080610b188eceabc216a5f0244d2b
SHA256aad9c5c01c5c87d33da0695c53eb0bdae432d41452a2f54ddc1f23eb14928517
SHA512949bf7ff8eaa37a0c036af580f6bde633aec5336312f1c96d879aaf2398ee05f82a9d84ce002937b95382bedf2e7143e894b8d0feec478d074a1a3e1baf1d031
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memory/5088-6-0x000000001D2D0000-0x000000001D2FE000-memory.dmpFilesize
184KB
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memory/5088-2-0x000000001C8F0000-0x000000001CDBE000-memory.dmpFilesize
4.8MB
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memory/5088-3-0x000000001CE60000-0x000000001CEFC000-memory.dmpFilesize
624KB
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memory/5088-4-0x00007FFE23B30000-0x00007FFE244D1000-memory.dmpFilesize
9.6MB
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memory/5088-5-0x0000000001CA0000-0x0000000001CA8000-memory.dmpFilesize
32KB
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memory/5088-0-0x00007FFE23DE5000-0x00007FFE23DE6000-memory.dmpFilesize
4KB
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memory/5088-9-0x000000001E1F0000-0x000000001E1FA000-memory.dmpFilesize
40KB
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memory/5088-1-0x00007FFE23B30000-0x00007FFE244D1000-memory.dmpFilesize
9.6MB
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memory/5088-13-0x00007FFE23B30000-0x00007FFE244D1000-memory.dmpFilesize
9.6MB
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memory/5088-17-0x000000001EC90000-0x000000001ECB0000-memory.dmpFilesize
128KB
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memory/5088-16-0x000000001CF60000-0x000000001CF70000-memory.dmpFilesize
64KB
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memory/5088-18-0x000000001ED00000-0x000000001ED18000-memory.dmpFilesize
96KB
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memory/5088-20-0x00007FFE23B30000-0x00007FFE244D1000-memory.dmpFilesize
9.6MB