I’ve taken two extensive courses on malware analysis and they’re both based on the info in this book. It’s worth the investment. Even if you’re never going to get to the point where you’re breaking down binaries with IDA pro or Ghidra, it’s good to know basic static and dynamic analysis.
Practical Malware Analysis: The Hands-On Guide to Dissecting Malicious Software https://www.amazon.com/dp/1593272901/ref=cm_sw_r_cp_api_glt_i_PK2CE29QSFS1YC20D4PB