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CTF Writeups and Notes
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    • ABOH 2023
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    • GCTF 2023
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  1. CTF WRITEUP
  2. GCTF 2023

Broken

Corrupted PDF

PreviousRSANextWireshark #1

Last updated 1 year ago

Description

I got this pdf and it's very important to me. WHY CAN'T IT OPEN OMG!

Attachment: challenge.pdf

Solution

The PDF file given is corrupted and the content cannot be read.

We can use exiftool to check the metadata of the file. There is a warning says that this file has an invalid xref table.

We can search the internet for online tools that can repair corrupted PDF files.

Once fixed, scroll through the PDF file and we will see the flag at the bottom of the file.

Flag

GCTF2023{M3_4nd_my_Br0k3n_h3art}