Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5c6d547895f83a3…

MALICIOUS

PDF

43.4 KB Created: 2018-11-23 21:03:32 +03:00 Authoring application: FrameMaker 10.0.2 (via Acrobat Distiller 9.5.5 (Windows))
MD5: 1e190a7572193eca6353a86dbcf335f3 SHA-1: a5cfedcec6dcf9e853209da69188989854ad36bb SHA-256: b5c6d547895f83a3904d7bba772291b9c5e1e49d7319f036c1558431c8b0d16a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a large number of external links, indicating a potential SEO spam or content distribution scheme. The embedded URLs point to various PDF documents hosted on gorillawalker.com. No scripts were extracted, and the document body was not parsable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

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/john-g-paton-missionary-to-the-new-hebrides-an-autobiography.pdf
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    • http://www.gorillawalker.com/braai-buddy.pdf
    • http://www.gorillawalker.com/solid-state-electronic-devices-6th-edition.pdf
    • http://www.gorillawalker.com/route-66-still-kicks-driving-america-s-main-street.pdf
    • http://www.gorillawalker.com/communication-du-savoir-faire-implicite-de-l-architecte-french-edition.pdf
    • http://www.gorillawalker.com/defeated-masculinity-post-traumatic-cinema-in-the-aftermath-of-war.pdf
    • http://www.gorillawalker.com/by-joseph-b-martin-alfalfa-to-ivy-memoir-of-a.pdf
    • http://www.gorillawalker.com/improve-your-night-photography-improve-your-photography-book-4-kindle.pdf
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    • http://www.gorillawalker.com/longman-ibt-general-course-for-the-toefl-listening-second-edition.pdf
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    • http://www.gorillawalker.com/the-nonprofit-sector-in-hungary-johns-hopkins-nonprofit-sector-series.pdf
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    • http://www.gorillawalker.com/exceptional-scientific-and-engineering-works-of-art-instruments-and-models.pdf
    • http://www.gorillawalker.com/piloting-seamanship-and-small-boat-handling-volume-5-motor-boatings.pdf
    • http://www.gorillawalker.com/understanding-weather-and-climate-7th-edition-masteringmeteorology-series.pdf
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    • http://www.gorillawalker.com/congenital-deformities-of-the-hand-an-atlas-of-their-surgical.pdf
    • http://www.gorillawalker.com/sixth-lesson-in-christian-science-from-the-private-lessons.pdf
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    • http://www.gorillawalker.com/the-driving-force-food-evolution-and-the-future.pdf
    • http://www.gorillawalker.com/5-steps-to-a-5-ap-english-literature-2012-2013.pdf
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    • http://www.gorillawalker.com/muerte-me-da-la-coleccion-andanzas-spanish-edition.pdf
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    • http://www.gorillawalker.com/marcha-latino-chicago-and-the-immigrant-rights-movement-latinos-in.pdf
    • http://www.gorillawalker.com/electronic-cigarettes-what-the-experts-say-kindle-edition.pdf
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    • http://www.gorillawalker.com/manual-de-cirugia-ortopedica-y-traumatologia-manual-of-orthopedic-and.pdf
    • http://www.gorillawalker.com/merry-in-love-billionaires-in-love-book-5.pdf
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    • http://www.gorillawalker.com/route-66-still-kicks-dr
    • 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/