Running a file command often confirms it is a standard ZIP archive .
In a digital forensics or "Misc" challenge, this file is usually a designed to test your ability to uncover hidden data. File: Call of Cthulhu.zip ...
It may contain hundreds of folders (e.g., folder1/folder2/.../flag.txt ) or be "zipped" multiple times, requiring a recursive extraction script. Running a file command often confirms it is