Analyses Sites

Scan IP Addresses, Files, Domains and more

Virus Total

I would be surprised if you didn't know this site. One of the first places I go to when investigating a IP Addresses, URLs and Files.

https://www.virustotal.com

Hybrid Analysis

Sandbox

https://www.hybrid-analysis.com

Any Run

Sandbox

https://app.any.run/

Threat Miner

Data mining for Threat Intelligence.

https://www.threatminer.org/index.php

Threat Crowd

A search engine for threats.

https://www.threatcrowd.org/