T-cogne and PDF?
I've already had this kind of experience.
Have a look for yourself if the PDF from that attachment can be opened, and indeed, if that is any recognizeable file in the world of computing, at all:
Oh, BTW, you can't easily get where that is from, if I don't give you some clue. It's only a chronological clue, have a look at:
where it chronologically is by finding the subject line:
RE: za: št. Anita Rapčec, od koristnika: Miroslav Rovis [T201505050282]
The Message-ID and all the standards are deliberately broken by T-cogne, so that messages wouldn't get their thread, like e.g.:
T-cogne, can you pls. tell me, why can't you let me see my bills that you ask me to pay/that I already paid?
And what tells the most (but to the knowledgeable only) is, of course, the network trace:
And if you are an Unix-like OS user, you can use my dump_dLo.sh script to download them (the dir t-cogne-q-pdf-q with the PDFs will need to be manually downloaded, need to fix that...), currently only in the develop branch, so you need to:
git clone -b develop https://github.com/miroR/uncenzfrom, obviously, https://github.com/miroR/uncenz