I need an explanation

[Gho$t]

First I'm a beginner in cracking hashes need some clarification about this type. It's ASP.NET

I have a hashed password like this

Code:

djP0iBdlxMuiHQ8DbRclDg==

and the salt is

Code:

Hftwaf6W9seKDJCYlz4+1g==

if i need to crack it what is the procedure.
do i have to convert them from base64 to hash ? Ex. "base64 --decode |xxd -ps" ? then combined them together then use hashcat ?
how to know their type?
Thank you all