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2026-03-01
Forensics
Hard
DEADROP Forensics 4 - Redacted Blueprint
A PDF floor plan whose rooms spell OOPS from above, hiding a flag in an orphaned FlateDecode XObject with no page tree reference, invisible to all standard PDF viewers. Requires parsing raw PDF streams or hex editing to find and base64-decode the hidden object.
forensics
pdf
xobject
streams