Secret of the Polyglot

Description

The Network Operations Center (NOC) of your local institution picked up a suspicious file, they're getting conflicting information on what type of file it is. They've brought you in as an external expert to examine the file. Can you extract all the information from this strange file? Download the suspicious file here.

Hints

  • This problem can be solved by just opening the file in different ways

Solution

First, open the file with its current format(pdf). you'll get this.

1n_pn9_&_pdf_724b1287}

so we have second part of the flag. now let's check the file a bit more using file command.

file flag2of2-final.pdf
flag2of2-final.pdf: PNG image data, 50 x 50, 8-bit/color RGBA, non-interlaced

As you can see, it's actually a PNG image. so open it as a picture this time.

Congrats! you found the flag.