Was reading the "On CSV injection" PoC when I saw one of the references was to a txt file that was unzipped from the PDF itself! Very apt for Poc || GTFO as they love file polyglots. I wondered what else was in the "ZIP" file that is the PDF. Looks like there is tons of stuff to check out. Going to check out some of the files now. So gold though, I love this stuff.
$ unzip -l pocorgtfo19.pdf
Archive: pocorgtfo19.pdf
Length Date Time Name
--------- ---------- ----- ----
15905 01-04-2019 08:19 defender.zip
90291 03-04-2019 11:23 phrack6612.txt
181069 01-04-2019 08:19 jonesforth.tar.bz2
95259 03-04-2019 11:23 hydan.pdf
22868 03-25-2019 13:17 issues.txt
603752 03-09-2019 11:41 camlpdf.zip
28380 02-22-2019 11:10 word-decrementer.zip
1075200 03-04-2019 11:23 hydan-0.13.tar.gz
65552 01-04-2019 08:19 hopexii.nes
3096660 03-09-2019 10:01 winalskiworm.mp3
192504 03-09-2019 10:01 rfc2821.txt
269027 01-04-2019 08:19 BreakOutPDF.zip
168131 03-10-2019 14:53 thomsenmd2.pdf
1250401 01-04-2019 08:19 avgvawtrak.pdf
2371249 03-09-2019 11:41 bytepdf.zip
10437803 01-04-2019 08:19 softstripthesis.pdf
157703 01-04-2019 08:19 caml-formats.pdf
85611 01-04-2019 08:19 utf.pdf
49800 03-25-2019 13:17 issues.bib
380650 01-13-2019 09:55 ARMaHYDAN.zip
122322 03-09-2019 10:01 rfc5322.txt
5316181 02-22-2019 11:10 stevensthesis.pdf
24967 09-30-2018 18:35 vaxhax-0xabad1dea.txt
64954 03-09-2019 11:41 obytelib.zip
24087 01-04-2019 08:19 stegpal-0.2.8.0.tar.gz
134809 08-08-2016 00:11 avleak.pdf
298853 01-04-2019 08:19 galaxian.asm
852868 01-04-2019 08:19 caml-instructions.pdf
4008193 01-25-2019 04:28 reverse-engineering-ble-devices.pdf
2145 03-25-2019 13:17 index.txt
2306945 01-04-2019 08:19 urh.pdf
19676 03-09-2019 11:41 polyocamlbyte.zip
83900 01-04-2019 08:19 PDFRick.zip
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33897715 33 files