If this is a specific CTF, searching for "Noel 2021 CTF flag" or "SANS 2021 Noel" in a search engine may yield the precise solution. If you can share:
Extracting data from archives, such as zip or tar files, which might require navigating through multiple nested files (e.g., base64 -> zip -> bz2 -> tar). Download Noel20210927 rar
To find a good write-up, you should look for "KringleCon 2021" or "CyberDefenders Noel" on platforms like: If this is a specific CTF, searching for