Any solution so that the antivirus can detect these dangerous samples?
Greetings.
You did notice that Avast doesn't appear on the list of AVs on VT.
Essentially it doesn't do the on-demand scan that is being done on VT, so it won't appear on the list of AVs, not just AVs that don't detect it.
I don't know if it would detect in a live environment, with the Web Shield, File System Shield, Behaviour Shield, etc. - You can send samples direct to Avast:
Reporting a possible Malicious sample File or Website -
https://www.avast.com/report-malicious-file.php.
From the link select File, Click Browse, that will open Explorer, select the file from the location you have it and Submit.