Malicious PDF — malware analysis report

Static analysis result for SHA-256 773aad0ef1aa4e66…

MALICIOUS

PDF

41.2 KB Created: 2018-12-02 20:18:37 +03:00 Authoring application: - (via Acrobat Web Capture 5.0)
MD5: 503f548ee44c98c45a789fababa55617 SHA-1: 1cce67baa8aaee18d422718034dc3835584bdc49 SHA-256: 773aad0ef1aa4e669c6cc00620ce1a70dedcdea58fa918f9d76a5c0d88a146e9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as detected by the PDF_SEO_LINK_FARM heuristic. This suggests the document is designed to drive traffic to a website or distribute other documents, potentially for SEO manipulation or to host malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of specific user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/the-st-lawrence-river-rivers-in-world-history.pdf
    • http://www.gorillawalker.com/a-guided-tour-of-mathematical-methods-for-the-physical-sciences.pdf
    • http://www.gorillawalker.com/a-death-in-wichita-abortion-doctor-george-tiller-and-the.pdf
    • http://www.gorillawalker.com/devon-the-best-guide-to-exeter-plymouth-tavistock-the-moors.pdf
    • http://www.gorillawalker.com/hostile-acts-u-s-policy-in-costa-rica-in-the.pdf
    • http://www.gorillawalker.com/boards-wards-for-usmle-steps-2-3-boards-and-wards.pdf
    • http://www.gorillawalker.com/boplan-i-ukraina-zbirnyk-naukovykh-prats-ukrainian-edition.pdf
    • http://www.gorillawalker.com/weather-disney-classic-pooh.pdf
    • http://www.gorillawalker.com/finding-out-with-babysitter-kindle-edition.pdf
    • http://www.gorillawalker.com/love-as-passion-the-codification-of-intimacy-cultural-memory-in.pdf
    • http://www.gorillawalker.com/top-20-places-to-visit-in-england-top-20-england.pdf
    • http://www.gorillawalker.com/bravo-workbook-writing-and-reading-activities-level-1-spanish-edition.pdf
    • http://www.gorillawalker.com/the-frog-an-introduction-to-anatomy-histology-and-embryology-ed.pdf
    • http://www.gorillawalker.com/the-skills-of-cricket-the-skills-of-the-game.pdf
    • http://www.gorillawalker.com/i-walked-today-where-jesus-walked-sacred-song-for-voice.pdf
    • http://www.gorillawalker.com/the-juliette-society.pdf
    • http://www.gorillawalker.com/confessor-sword-of-truth-series.pdf
    • http://www.gorillawalker.com/tony-alvarez-security-series-volume-2.pdf
    • http://www.gorillawalker.com/o-rare-ralph-mcinerny-stories-and-reflections-on-a-legendary.pdf
    • http://www.gorillawalker.com/the-wild-party-vocal-selections-piano-vocal.pdf
    • http://www.gorillawalker.com/2010-blue-flowers-engagement-calendar-weekly-planner.pdf
    • http://www.gorillawalker.com/inventory-and-production-management-in-supply-chains-fourth-edition.pdf
    • http://www.gorillawalker.com/the-imperial-guide-to-india-including-kashmir-burma-and-ceylon.pdf
    • http://www.gorillawalker.com/toys-and-american-culture-an-encyclopedia.pdf
    • http://www.gorillawalker.com/no-right-answers.pdf
    • http://www.gorillawalker.com/cape-cod-catboats.pdf
    • http://www.gorillawalker.com/little-red-riding-hood-playtales.pdf
    • http://www.gorillawalker.com/dotto-and-the-pharaoh-s-mask.pdf
    • http://www.gorillawalker.com/compendium-of-the-punjab-customary-law.pdf
    • http://www.gorillawalker.com/the-classification-of-sex-alfred-kinsey-and-the-organization-of.pdf
    • http://www.gorillawalker.com/kip-campbell-s-gift-funeral-director-s-son.pdf
    • http://www.gorillawalker.com/aspects-of-pacific-seismicity-pageoph-topical-volumes.pdf
    • http://www.gorillawalker.com/jumbo-word-search-explosion.pdf
    • http://www.gorillawalker.com/ucla-anderson-import-unbound.pdf
    • http://www.gorillawalker.com/days-with-ulanova-with-an-introduction-by-arnold-l-haskell.pdf
    • http://www.gorillawalker.com/ipad-apps-for-kids-for-dummies-kindle-edition.pdf
    • http://www.gorillawalker.com/crow-country.pdf
    • http://www.gorillawalker.com/sookie-the-chicken-and-the-pumpkin-boat-ride-kindle-edition.pdf
    • http://www.gorillawalker.com/the-top-100-men-of-the-bible-top-100-series.pdf
    • http://www.gorillawalker.com/animal-behavior-an-evolutionary-approach-5th-ed-hc-93.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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