write-ups-challenges-2023-2024/DarknetDiaries/SOLUTION.md

Difficulty

Easy

Category

Forensics

How To Solve

First, determine the file type of darknetdiaries:

> file darknetdiaries
darknetdiaries: Audio file with ID3 version 2.3.0, contains: MPEG ADTS, layer III, v1, 128 kbps, 48 kHz, JntStereo

To play the audio, convert to a file with audio extension (e.g., .wav, .mp3). Open the audio file in an audio editing program of choice that can show the spectrogram. The flag can be read from the spectrogram:

Flag

IGCTF{sp3cTrOgr2m}