Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4aa7d80cb8ea155…

MALICIOUS

PDF

34.4 KB Created: 2020-01-10 17:23:02 +03:00 Authoring application: Adobe Photoshop 5.0 (via Adobe Photoshop for Windows)
MD5: 11d3419ad2189c3148af7f6b2c19b965 SHA-1: 25e8fe20f36ae935bb5c909f8e5ae0d4d7547d60 SHA-256: c4aa7d80cb8ea1558dce5717ea17ce728b3e19c7fd762d07313f94d20c97fb43
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8263

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/zoo-animals-dk-spotters-guides.pdf
    • http://www.gorillawalker.com/egyptian-mythology-gods-pharaohs-and-book-of-the-dead-of.pdf
    • http://www.gorillawalker.com/houghton-mifflin-reading-student-edition-grade-4-traditions-2008.pdf
    • http://www.gorillawalker.com/making-the-news-a-guide-for-nonprofits-and-activists.pdf
    • http://www.gorillawalker.com/mergers-motives-effects-policies.pdf
    • http://www.gorillawalker.com/origami-polyhedra-design-by-john-montroll-oct-26-2009.pdf
    • http://www.gorillawalker.com/mcgraw-hills-conquering-the-gmat-math-and-integrated-reasoning-2nd.pdf
    • http://www.gorillawalker.com/the-big-picture-bible-timeline-book-for-ages-6-150.pdf
    • http://www.gorillawalker.com/artist-rebel-dandy-men-of-fashion-museum-of-art-rhode.pdf
    • http://www.gorillawalker.com/probability-in-electrical-engineering-and-computer-science-an-application-driven.pdf
    • http://www.gorillawalker.com/the-later-renaissance-in-england-nondramatic-verse-and-prose-1600.pdf
    • http://www.gorillawalker.com/favorite-brand-name-recipes-kikkoman-chinese-cooking-magazine-february-1997.pdf
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    • http://www.gorillawalker.com/dsp-based-electromechanical-motion-control-power-electronics-and-applications-series.pdf
    • http://www.gorillawalker.com/the-blues.pdf
    • http://www.gorillawalker.com/the-ultimate-beginners-running-guide-the-key-to-running-inspired.pdf
    • http://www.gorillawalker.com/bugs-of-the-future-primitive-a-colouring-book.pdf
    • http://www.gorillawalker.com/special-relativity-an-introduction-with-200-problems-and-solutions.pdf
    • http://www.gorillawalker.com/handbook-of-diagnostic-tests-for-pda-powered-by-skyscape-inc.pdf
    • http://www.gorillawalker.com/the-kelalis-king-belman-textbook-of-clinical-pediatric-urology-fifth.pdf
    • http://www.gorillawalker.com/joshua-and-aaron-itp-book-two.pdf
    • http://www.gorillawalker.com/the-yachtman-s-guide-to-the-bahamas.pdf
    • http://www.gorillawalker.com/pure-heart-clear-conscience-living-a-catholic-moral-life.pdf
    • http://www.gorillawalker.com/a-tour-through-mathematical-logic-carus-mathematical-monographs.pdf
    • http://www.gorillawalker.com/juicing-for-the-health-of-it-natural-health-guide-alive.pdf
    • http://www.gorillawalker.com/red-tape.pdf
    • http://www.gorillawalker.com/theatre-games-a-new-approach-to-drama-training-performance-books.pdf
    • http://www.gorillawalker.com/gullah-home-cooking-the-daufuskie-way-smokin-joe-butter-beans.pdf
    • http://www.gorillawalker.com/sarcoplasmic-reticulum-structure-development-roles-and-evolution.pdf
    • http://www.gorillawalker.com/rubicon-a-novel-of-suspense.pdf
    • http://www.gorillawalker.com/geranium-and-pelargonium-history-of-nomenclature-usage-and-cultivation-medicinal.pdf
    • http://www.gorillawalker.com/from-conquest-to-conservation-our-public-lands-legacy.pdf
    • http://www.gorillawalker.com/a-guide-for-using-sounder-in-the-classroom-literature-units.pdf
    • http://www.gorillawalker.com/community-college-experience-brief-edition-the-plus-new-mystudentsuccesslab-update.pdf
    • http://www.gorillawalker.com/clean-eats-over-200-delicious-recipes-to-reset-your-body.pdf
    • http://www.gorillawalker.com/atlanta-downtown-popout-map.pdf
    • http://www.gorillawalker.com/1-2-3-with-nephi-and-me.pdf
    • http://www.gorillawalker.com/the-complete-idiot-s-guide-to-writing-nonfiction-idiot-s.pdf
    • http://www.gorillawalker.com/estilos-de-decoracion-spanish-edition.pdf
    • http://www.gorillawalker.com/the-little-chinese-dreammaster-the-chinese-dreamlords-book-1-kindle.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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