Analysis Overview
SHA256
91ecad5a2010a6d8b6b738a88a1e3db30bd0e4fbc647cd49ecadebdf0a357643
Threat Level: Known bad
The file 43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.zip was found to be: Known bad.
Malicious Activity Summary
Avoslocker Ransomware
Modifies extensions of user files
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-12-13 07:39
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-12-13 07:39
Reported
2022-12-13 07:42
Platform
win7-20220812-en
Max time kernel
43s
Max time network
46s
Command Line
Signatures
Avoslocker Ransomware
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File renamed | C:\Users\Admin\Pictures\RepairReceive.tif => C:\Users\Admin\Pictures\RepairReceive.tif.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\SyncSet.tiff => C:\Users\Admin\Pictures\SyncSet.tiff.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\TestPublish.tif => C:\Users\Admin\Pictures\TestPublish.tif.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ExitReceive.png => C:\Users\Admin\Pictures\ExitReceive.png.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ExportComplete.png => C:\Users\Admin\Pictures\ExportComplete.png.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\HideExpand.tiff | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\HideExpand.tiff => C:\Users\Admin\Pictures\HideExpand.tiff.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\SyncSet.tiff | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\DisableWatch.raw => C:\Users\Admin\Pictures\DisableWatch.raw.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\EnableClose.tif => C:\Users\Admin\Pictures\EnableClose.tif.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\FindLock.png => C:\Users\Admin\Pictures\FindLock.png.avos | C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Processes
C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe
"C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe"
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2022-12-13 07:39
Reported
2022-12-13 07:42
Platform
win10v2004-20221111-en
Max time kernel
117s
Max time network
128s
Command Line
Signatures
Avoslocker Ransomware
Modifies extensions of user files
Suspicious behavior: EnumeratesProcesses
Processes
C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe
"C:\Users\Admin\AppData\Local\Temp\43b7a60c0ef8b4af001f45a0c57410b7374b1d75a6811e0dfc86e4d60f503856.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 52.182.143.211:443 | tcp | |
| N/A | 104.80.225.205:443 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 87.248.202.1:80 | tcp |