URLscan.io - urlscan.io is a free service to scan and analyse websites. When a URL is submitted to urlscan.io, an automated process will browse to the URL like a regular user and record the activity that this page navigation creates.

Joe Sandbox - Automated Malware Analysis - Development and Licensing of Automated Malware Analysis Tools to Fight Malware

CyberGordon - Aggregator of cyber reputation checks with more than 30 engines (threat intel sources)

MalShare - MalShare is a public malware repository providing access to malware samples that have been reported by users.

AbuseIPDB - AbuseIPDB is an IP address blacklist for webmasters and sysadmins to report IP addresses engaging in abusive behavior on their networks, or check the report history of any IP.

VxStream Sandbox - Network & Admin