Watermarks (Вотермарки)

hackerlab

Task: PDF document about watermarks with hidden embedded images. Solution: Extract all images using pdfimages tool; the flag is hidden in the smallest image (173x35 pixels).

document_analysis hidden_data pdf_forensics embedded_images pdfimages watermark_extraction

Document structure analysisPDF embedded image extractionHidden content discovery via pdfimages

$ ls tags/ techniques/

document_analysis hidden_data pdf_forensics embedded_images pdfimages watermark_extraction

Document structure analysisPDF embedded image extractionHidden content discovery via pdfimages

Analysis

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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