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# System prepended metadata

title: Forensic-Easy-PicoCTF (Part1)

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 # I/Riddle Registry
🕵️**The Challenge :**
Here is an easy-level forensic problem: it involves a PDF file that contains a lot of non‑relevant text :+1: ![image](https://hackmd.io/_uploads/SyAC6vI0gl.png)


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**Solve**
I see two hint is : “visible text just a decoy” and “look beyond a surface” , They remind me of Exiftool

🧠**Overview Exiftool**

ExifTool is a free, open‑source command‑line utility for reading, writing, and editing metadata in a wide variety of file types
![image](https://hackmd.io/_uploads/BJAzRPURxe.png)


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Ohh , i seen base64 code “cGljb0NURntwdXp6bDNkX20zdGFkYXRhX2YwdW5kIV9jOTk5ZTJhNH0=”

i decode to have flag
![image](https://hackmd.io/_uploads/Hk3bADLAxx.png)

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Flag :

`picoCTF{puzzl3d_m3tadata_f0und!_c999e2a4}`




