REMnux is a lightweight, Ubuntu-based Linux distribution for assisting malware analysts with reverse-engineering malicious software. It incorporates a number of tools for analysing malicious executables that run on Microsoft Windows, as well as browser-based malware, such as Flash programs and obfuscated JavaScript. The toolkit also includes programs for analysing malicious documents, such PDF files, and utilities for reverse-engineering malware through memory forensics.
https://remnux.org/