Malicious PDF — malware analysis report

Static analysis result for SHA-256 713009517802fcc8…

MALICIOUS

PDF

42.6 KB Created: 2019-05-05 01:33:50 +03:00 Authoring application: FrameMaker 6.0 (via Acrobat Distiller 6.0.1 for Macintosh)
MD5: db3eb557ed15b016c4984ede88ec5265 SHA-1: 7c18599a48273cc49d2ff993059a8a7af2dfcc3e SHA-256: 713009517802fcc8d221518a2c6f2984651acac7e12cf8a738757887a6764e30
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine rankings or distribute malicious content through these external sites. The document body was unreadable, preventing a more specific analysis of its lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/sri-lanka-2-life-along-the-west-coast-the-real.pdf
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    • http://www.gorillawalker.com/rattlesnakes-and-bald-eagles-hiking-the-pacific-crest-trail.pdf
    • http://www.gorillawalker.com/performance-evaluation-by-simulation-and-analysis-with-applications-to-computer.pdf
    • http://www.gorillawalker.com/blackstone-s-tricks-anyone-can-do.pdf
    • http://www.gorillawalker.com/education-leadership-and-islam-theories-discourses-and-practices-from-an.pdf
    • http://www.gorillawalker.com/the-wealth-of-nations-an-inquiry-into-the-nature-and.pdf
    • http://www.gorillawalker.com/angler-s-bible.pdf
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    • http://www.gorillawalker.com/miscarriage.pdf
    • http://www.gorillawalker.com/911-responding-for-life-case-studies-in-emergency-care.pdf
    • http://www.gorillawalker.com/concepts-in-dental-public-health.pdf
    • http://www.gorillawalker.com/made-for-each-other-reflections-on-the-opposite-sex.pdf
    • http://www.gorillawalker.com/complete-gymnastics-handbook-floor-exercise-vault-pommel-horse-parallel-bars.pdf
    • http://www.gorillawalker.com/how-to-lose-friends-alienate-people.pdf
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    • http://www.gorillawalker.com/the-final-rings-kindle-edition.pdf
    • http://www.gorillawalker.com/gas-tungsten-arc-welding-hobart-institute-of-welding-technology.pdf
    • http://www.gorillawalker.com/the-new-bowling-trivia-book.pdf
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    • http://www.gorillawalker.com/mediation-analysis-quantitative-applications-in-the-social-sciences.pdf
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    • http://www.gorillawalker.com/billiards-and-snooker-know-the-game-series.pdf
    • http://www.gorillawalker.com/the-scerts-model-assessment-a-comprehensive-educational-approach-for-young.pdf
    • http://www.gorillawalker.com/intern-a-doctor-s-initiation.pdf
    • http://www.gorillawalker.com/a-picture-is-worth-1000-yards-sports-photography-of-walter.pdf
    • http://www.gorillawalker.com/the-italian-renaissance-reader-meridian-s-paperback.pdf
    • http://www.gorillawalker.com/the-blue-coral-mystery-the-lighthouse-mystery-series-volume-1.pdf
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    • http://www.gorillawalker.com/chill-out-scary-california-tales-based-on-frightening-california-truths.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/