Malicious PDF — malware analysis report

Static analysis result for SHA-256 85517158726226d1…

MALICIOUS

PDF

42.9 KB Created: 2018-12-02 10:54:44 +03:00 Authoring application: DITA Open Toolkit (via Apache FOP Version 1.0)
MD5: 7026cc117accc598e585f52cb9b3a05c SHA-1: 2734c23690fda9f046bacdd9eb7acda94b5e5cad SHA-256: 85517158726226d18e5ccbc96be23280ba47a691549b516d22a64bce4167ce92
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was identified as malicious by an ML classifier and triggered a critical heuristic for a PDF link farm containing 32 external links. The document body appears to be heavily obfuscated or corrupted, preventing analysis of its direct content. The primary attack pattern observed is the mass embedding of URLs, likely intended for SEO manipulation or to serve as a distribution point for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8469

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/baptist-union-of-great-britain-directory-2012.pdf
    • http://www.gorillawalker.com/new-york-post-creepy-su-doku.pdf
    • http://www.gorillawalker.com/archery-4th-edition-steps-to-success-steps-to-success-sports.pdf
    • http://www.gorillawalker.com/the-driving-force-food-evolution-and-the-future.pdf
    • http://www.gorillawalker.com/many-cells-one-body-stories-from-small-christian-communities-risk.pdf
    • http://www.gorillawalker.com/the-inspired-vegetarian-creative-ideas-for-natural-healthy-eating.pdf
    • http://www.gorillawalker.com/virtual-you-love-beauty-relationships-purity-truth.pdf
    • http://www.gorillawalker.com/longman-ibt-general-course-for-the-toefl-listening-second-edition.pdf
    • http://www.gorillawalker.com/distributed-feedback-semiconductor-lasers-iee-circuits-devices-systems-series-no.pdf
    • http://www.gorillawalker.com/thomas-mann-the-uses-of-tradition-clarendon-paperbacks.pdf
    • http://www.gorillawalker.com/defeated-masculinity-post-traumatic-cinema-in-the-aftermath-of-war.pdf
    • http://www.gorillawalker.com/hadamard-matrices-and-their-applications.pdf
    • http://www.gorillawalker.com/opportunities-in-photography-careers.pdf
    • http://www.gorillawalker.com/fourier-hadamard-and-hilbert-transforms-in-chemistry.pdf
    • http://www.gorillawalker.com/piloting-seamanship-and-small-boat-handling-volume-5-motor-boatings.pdf
    • http://www.gorillawalker.com/introductory-econometrics-emea-adaptation.pdf
    • http://www.gorillawalker.com/selected-poems-james-k-baxter.pdf
    • http://www.gorillawalker.com/the-joy-of-hate-how-to-triumph-over-whiners-in.pdf
    • http://www.gorillawalker.com/und-morgen-du-kriminalroman-ein-fabian-risk-krimi-1-german.pdf
    • http://www.gorillawalker.com/braai-buddy.pdf
    • http://www.gorillawalker.com/the-secret-sales-pitch-an-overview-of-subliminal-advertising.pdf
    • http://www.gorillawalker.com/communication-du-savoir-faire-implicite-de-l-architecte-french-edition.pdf
    • http://www.gorillawalker.com/red-heat-conspiracy-murder-and-the-cold-war-in-the.pdf
    • http://www.gorillawalker.com/pyrenees-andorra-cadi-no-21-carte-de-randonnes.pdf
    • http://www.gorillawalker.com/reclaiming-history-the-assassination-of-president-john-f-kennedy-abridged.pdf
    • http://www.gorillawalker.com/romania-people-to-people.pdf
    • http://www.gorillawalker.com/polyandry-and-wife-selling-in-qing-dynasty-china-survival-strategies.pdf
    • http://www.gorillawalker.com/today-s-pop-rock-hits-instrumental-solos-tenor-sax-book.pdf
    • http://www.gorillawalker.com/los-maestros-de-atlantis-spanish-edition.pdf
    • http://www.gorillawalker.com/blues-piano-lessons-for-beginners-teach-yourself-how-to-play.pdf
    • http://www.gorillawalker.com/how-to-find-the-best-doctors-for-you-and-your.pdf
    • http://www.gorillawalker.com/noah-s-ark-angels.pdf
    • http://www.gorillawalker.com/manual-de-cirugia-ortopedica-y-traumatologia-manual-of-orthopedic-and.pdf
    • http://www.gorillawalker.com/lonely-planet-florence-city-guide.pdf
    • http://www.gorillawalker.com/understanding-weather-and-climate-7th-edition-masteringmeteorology-series.pdf
    • http://www.gorillawalker.com/everything-but-espresso-professional-coffee-brewing-techniques.pdf
    • http://www.gorillawalker.com/the-nonprofit-sector-in-hungary-johns-hopkins-nonprofit-sector-series.pdf
    • http://www.gorillawalker.com/metodologia-investigacion-aplicada-turismo-spanish-edition.pdf
    • http://www.gorillawalker.com/a-glimpse-of-stocking-or-something-shocking.pdf
    • http://www.gorillawalker.com/a-philosophy-of-christian-materialism-entangled-fidelities-and-the-public.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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