🛡️ GreyCTF 2025 Forensics Challenge: Layer Cake | Writeup by Team Bitsec 🕵️♂️
Welcome to Team Bitsec's official writeup for the "Layer Cake" forensic challenge from *GreyCTF 2025*! In this video, we peel back the digital layers of a suspicious .mp3 file that hides more than it seems. From magic bytes to ZIP carving to DOCX extraction — this challenge is a true layer cake of hidden data!
Whether you're a beginner exploring digital forensics or a seasoned CTF player, this walkthrough will help you learn essential techniques such as file carving, format identification, and XML inspection — all used to uncover the final flag.
🧩 Challenge: Layer Cake
🎯 Category: Forensics
🏁 CTF: GreyCTF 2025
👨💻 Presented by: Team Bitsec
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