0h8q1ak2acptoechqhoxq_source.mp4 -
Open the audio stream and switch the view to Spectrogram . Frequently, flags are visually "drawn" into the frequencies of the audio, appearing as text when viewed this way.
Scour the output for readable text that looks like a password or a URL. 0h8q1ak2acptoechqhoxq_source.mp4
strings 0h8q1ak2acptoechqhoxq_source.mp4 | grep -i "CTF" (or the specific tag for the competition). Open the audio stream and switch the view to Spectrogram