Level: Easy
Author: M.
I got this little image, but it looks like the best part got censored on the way. Even the tiny preview icon looks clearer than this! Maybe they missed something that would let you restore the original content?
From the challenge description it was clear that the flag would be visible in the thumbnail. I extracted it with exiv2 -et f182d5f0-1d10-4f0f-a0c1-7cba0981b6da.jpg.
Scanning this QR code gave the flag HV19{just-4-PREview!}.