CTF Chagllenge

https://battle.cookiearena.org/challenges/digital-forensics/yellow-whistleblower This chagllenge is about MIC, but when i sumbit flag its wrong and i dont know why ​ This is DocuColor Tracking Dot in PDF file I decode it to 05-02-2020 10:02 (serial number isn't important). Can you tell me about my mistake pls? submitted by /u/Meraki_Eternity [link] [comments]

from hacking: security in practice https://ift.tt/nWVfmKl