: In Sonic Visualiser, navigate to Pane -> Add Spectrogram -> Channel 1 . The flag is often literally written in the frequencies of the spectrogram.
Based on available Capture The Flag (CTF) records, refers to a forensics or steganography challenge from the HackTheBox or OFPPT-CTF platforms, often involving hidden data within audio or multi-layered encoding . 1. Challenge Overview
: The RAR archive typically contains a single audio file. Standard tools like file or exiftool confirm it is a valid MPEG audio layer 3 file. 2. Forensic Steps (Audio Analysis)