Memory Samples
https://github.com/volatilityfoundation/volatility/wiki/Memory-Samples
https://www.root-me.org/
https://tryhackme.com/
https://www.virustotal.com
https://www.hybrid-analysis.com/
IPs with hostnames
https://passivedns.mnemonic.no/
online password hash cracker
https://crackstation.net/