Mandiant's tool for static analysis of PE files

https://github.com/mandiant/capa

The very useful PE studio

https://www.winitor.com/

https://tria.ge/

Lenny Zeltser maintains a updated list of online sandboxes

https://zeltser.com/automated-malware-analysis/

https://zeltser.com/lookup-malicious-websites/

Safely open a URL and capture the result

https://lookyloo.circl.lu/capture