Analysis Overview
SHA256
2a23fcb070ece90f2c7b6e4901cf6fdee9231943d8ed8b54d97ef6f43ea87673
Threat Level: Shows suspicious behavior
The file avast_premium_security_setup_online.exe was found to be: Shows suspicious behavior.
Malicious Activity Summary
Writes to the Master Boot Record (MBR)
Checks SCSI registry key(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-14 22:59
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-14 22:59
Reported
2024-06-14 23:01
Platform
win10v2004-20240508-en
Max time kernel
98s
Max time network
96s
Command Line
Signatures
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\avast_premium_security_setup_online.exe | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\Local Settings | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Processes
C:\Users\Admin\AppData\Local\Temp\avast_premium_security_setup_online.exe
"C:\Users\Admin\AppData\Local\Temp\avast_premium_security_setup_online.exe"
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 --field-trial-handle=4404,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=4252 /prefetch:8
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /7
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | v7event.stats.avast.com | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
| US | 8.8.8.8:53 | iavs9x.u.avcdn.net | udp |
Files
memory/532-4-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-3-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-2-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-8-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-9-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-14-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-13-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-12-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-11-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/532-10-0x000001F97EA90000-0x000001F97EA91000-memory.dmp
memory/2084-15-0x0000000000930000-0x0000000000973000-memory.dmp
memory/2084-18-0x0000000000930000-0x0000000000973000-memory.dmp