PDF static analysis report

Static analysis result for SHA-256 799c8f74cf58bc96…

SUSPICIOUS

PDF

76.4 KB Created: 2021-07-13 02:36:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 2702a0229df65f99e92cc4bcab1795a9 SHA-1: f889a4930a9f80f47d22d29e10bebb757ff69514 SHA-256: 799c8f74cf58bc963f4225e2183ec8beab6eed90e74e53347d287c7327eddaea
46 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.2489

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://feedproxy.google.com/~r/sq/ugae/~3/CcIy6vlvkUk/square?utm_term=discussion+of+theory+lab+report+example PDF link annotation
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ecb59edb07696a66568e57/1626125726431/complete_mathematics_for_cambridge_igcse_extended_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e94691085b1c120f995b49/1625900689497/68957776694.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC6 15644 bytes
SHA-256: fbf0119b4b4f4f0386a91af096f6fa80992d2853a217d48fd7e38faca09362ad
font_01_sfnt_off0000f3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C0 11200 bytes
SHA-256: 08ce57057590b6206c4661b5b04988d6dcca8c7df8dd079f873cdfb9e533a02c
font_02_sfnt_off00010da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DA5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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