Below are some of the resources I have collected from the web which I found to be very useful during analysis.

Malware Analysis

https://github.com/zbetcheckin/PDF_analysis

https://github.com/michalmalik/linux-re-101

Assembly Language & Reverse Engineering

https://www.pentesteracademy.com/course?id=3

https://github.com/Kan1shka9/x86-Assembly-Language-and-Shellcoding-on-Linux