"how to install malware and get the cache memory on an system"
-first need to know what system is used...
-Installing a malware is not the problem,
stay connected inside the system without get detected is the real problem in fact...
"tools I would need to hack a hotel for dumps"
-All the tools are free on internet
-open source malware
-open source information gathering
-open source memorie scrapping decoding
we dont know if dump go over computer or is like in europe pos
in your case i think is better to play on social engienering and call people to get direct otp confimation
You will raise alarm on workers thats the biggest problem
You can cash out more money buying crypto directly by validate with owner on phone
If he on summer, he is confused and think bank really call him
He or She will confirm everything for you if you know how to play it