Warmer Up — DalCTF 2026
The challenge file is the CTF’s own rules PDF — the flag sits in plain text as the last line; pdftotext reveals it, after ruling out post-EOF carving and active content.
Binwalk
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The challenge file is the CTF’s own rules PDF — the flag sits in plain text as the last line; pdftotext reveals it, after ruling out post-EOF carving and active content.