The first step is to analyze the container. You can use standard command-line tools to verify the file type and list its contents:
If the GIF itself contains appended data (common in "Become Someone" themed challenges where you "unmask" a file):
Convert the file to a hash format (e.g., zip2john file.zip > hash.txt ) and run john hash.txt using a wordlist like rockyou.txt . File: Become_someone_v105_gif_version.zip ...
Since the filename mentions a "gif_version," look for GIF files within the zip. If a GIF is present:
Check for hidden comments or data in the GIF header using exiftool . The first step is to analyze the container
GIFs are made of multiple frames. Use tools like ImageMagick to explode the GIF into individual frames: convert animation.gif frame%03d.png . Hidden data often resides in a single, near-invisible frame.
Use file Become_someone_v105_gif_version.zip to confirm it is a standard ZIP archive . If a GIF is present: Check for hidden
Run binwalk -e filename.gif to automatically find and extract hidden files embedded in the GIF's binary data.