PicoCTF - Redaction gone wrong

Challenge

Tags

PicoCTF 2022 / Forensics

Description

Now you DON’T see me.
This report has some critical data in it, some of which have been redacted correctly, while some were not. Can you find an important key that was not redacted properly?

Prereguisite

pdftotext
You can download by sudo apt install poppler-utils.

Writeup

1. Download the pdf.

   
    wget https://artifacts.picoctf.net/c/264/Financial_Report_for_ABC_Labs.pdf
   
   

2. Convert pdf to txt.

   
    pdftotext Financial_Report_for_ABC_Labs.pdf
   
   

3. Grep the flag.

   
    cat Financial_Report_for_ABC_Labs.txt| grep pico
       
   

4. Here’s flag! picoCTF{C4n_Y0u_S33_m3_fully} ٩(^ᴗ^)۶