Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c20771b6372806…

MALICIOUS

PDF

38.9 KB Created: 2018-12-14 20:13:53 +03:00 Authoring application: Adobe InDesign CS4 (6.0.6) (via Adobe PDF Library 9.0)
MD5: cc9f6bc18d438ef05d50bb47f6274cc8 SHA-1: af8fecefbbca2956d62461caae9cf9593ea68c8e SHA-256: 70c20771b6372806b8426827749e33de5e9080313c18bad8c6a4a3a1891a6e10
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files on the domain 'gorillawalker.com'. This is indicative of a link farm or SEO manipulation tactic, and the ML classifier also flagged the document as malicious. The primary attack pattern observed is the distribution of numerous external links, likely to spread malicious content or manipulate search engine rankings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8500

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://www.gorillawalker.com/b-alberti-magni-opera-omnia-volume-20-romanian-edition.pdf
    • http://www.gorillawalker.com/the-gods-and-technology-a-reading-of-heidegger-suny-series.pdf
    • http://www.gorillawalker.com/the-tiger-king-storymania-priyash-kumar-kindle-edition.pdf
    • http://www.gorillawalker.com/the-healing-herbs-cookbook.pdf
    • http://www.gorillawalker.com/voyages-of-a-simple-sailor.pdf
    • http://www.gorillawalker.com/david-farragut-ffcw-famous-figures-of-the-civil-war-era.pdf
    • http://www.gorillawalker.com/cultural-dimensions-of-play-games-and-sport-association-for-the.pdf
    • http://www.gorillawalker.com/aaa-2001-spiral-guide-florence-aaa-spiral-guides.pdf
    • http://www.gorillawalker.com/vital-face-facial-exercises-and-massage-for-health-and-beauty.pdf
    • http://www.gorillawalker.com/gandhi-the-father-of-modern-india-what-s-their-story.pdf
    • http://www.gorillawalker.com/essentials-of-emergency-medicine.pdf
    • http://www.gorillawalker.com/dieta-paleol.pdf
    • http://www.gorillawalker.com/jo-mary-black-free-slave-a-novel.pdf
    • http://www.gorillawalker.com/infectious-diseases-in-30-days.pdf
    • http://www.gorillawalker.com/comparative-law.pdf
    • http://www.gorillawalker.com/carry-me-noah-and-the-ark.pdf
    • http://www.gorillawalker.com/microwaving-meats-from-microwave-cooking-library.pdf
    • http://www.gorillawalker.com/oakland-athletics-101-my-first-team-board-book.pdf
    • http://www.gorillawalker.com/small-animal-practice-stifle-surgery-veterinary-clinics-of-north-america.pdf
    • http://www.gorillawalker.com/intl-biblio-pol-sc-1963-vol-12-international-bibliography-of.pdf
    • http://www.gorillawalker.com/florence-and-tuscany-with-kids-florence-and-tuscany-travel-guide.pdf
    • http://www.gorillawalker.com/kabbani-s-flat-nora-project-kindle-edition.pdf
    • http://www.gorillawalker.com/regulation-through-litigation.pdf
    • http://www.gorillawalker.com/herbie-hancock-possibilities-kindle-edition.pdf
    • http://www.gorillawalker.com/the-road-to-science-fiction-from-heinlein-to-here-road.pdf
    • http://www.gorillawalker.com/perugia-s-giustino-villa-bufalini-gia-castello.pdf
    • http://www.gorillawalker.com/taking-a-gander-a-tongue-in-beak-weregoose-tale-hot.pdf
    • http://www.gorillawalker.com/tennis-steps-to-success-3rd-edition.pdf
    • http://www.gorillawalker.com/guided-randomness-in-optimization-volume-1-metaheuristics-set.pdf
    • http://www.gorillawalker.com/london-s-most-wanted-rake-harlequin-historical-rakes-who-make.pdf
    • http://www.gorillawalker.com/wonders-of-the-world-atlas.pdf
    • http://www.gorillawalker.com/irish-step-dancing-dance.pdf
    • http://www.gorillawalker.com/christmas-at-the-keyboard-with-mark-hayes.pdf
    • http://www.gorillawalker.com/dictionary-of-literary-biography-italian-prose-writers.pdf
    • http://www.gorillawalker.com/iran-s-dirty-banking-how-the-islamic-republic-skirts-international.pdf
    • http://www.gorillawalker.com/other-waters-a-novel.pdf
    • http://www.gorillawalker.com/a-second-course-in-linear-algebra.pdf
    • http://www.gorillawalker.com/the-civil-wars-in-chile-or-the-bourgeois-revolutions-that.pdf
    • http://www.gorillawalker.com/cliffsnotes-on-hurston-s-their-eyes-were-watching-god-cliffsnotes.pdf
    • http://www.gorillawalker.com/the-elves-and-the-shoemaker-a-play-for-kids-showbizseries.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

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