[wustctf2020] climb

[WUSTCTF2020] climb

Title address : https://buuoj.cn/challenges#[WUSTCTF2020]%E7%88%AC

Unzip and get a ++ file ,strings Check it out. , Found to have pdf Characteristics of

use foremost Separate , Then check it out pdf Content

After deleting the picture , Get a bunch of 16 Hexadecimal number

I read pictures , There should be some recognition errors on his side , hold v Modified into {

776374663230323076746831735f31735f405f7064665f616e645f7930755f63616e5f7573655f70686f7430736830707d

flag{[email protected]_pdf_and_y0u_can_use_phot0sh0p}