Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b4ddc3a284b69c…

MALICIOUS

PDF

43.1 KB Created: 2018-11-26 20:27:25 +03:00 Authoring application: Adobe InDesign CS2 (4.0) (via Adobe PDF Library 7.0)
MD5: 98cf45084b8debd3ff10589c5c3d4408 SHA-1: 31502b425aa13a2de4526e5ca5b94449aed6f26e SHA-256: 62b4ddc3a284b69c5bb31dba1ee1996fe8e5943bff28d66cc9a7334044ee6c9c
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 on the domain 'gorillawalker.com'. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as flagged by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness. The primary attack pattern observed is the mass distribution of links, likely intended to deceive users or manipulate search engine results.

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/the-mayo-clinic-breast-cancer-book-paperback-2012-author-by.pdf
    • http://www.gorillawalker.com/minecraft-beginner-s-guide-survive-the-night-minecraft-crafting-mining.pdf
    • http://www.gorillawalker.com/hearing-god-s-word-expositional-preaching-9marks-healthy-church-study.pdf
    • http://www.gorillawalker.com/the-chantic-bird-text-classics-kindle-edition.pdf
    • http://www.gorillawalker.com/fundamentals-of-biomechanics-equilibrium-motion-and-deformation.pdf
    • http://www.gorillawalker.com/100-new-testament-sermon-outlines.pdf
    • http://www.gorillawalker.com/modern-geomorphology-paperback.pdf
    • http://www.gorillawalker.com/applied-dental-materials-kindle-edition.pdf
    • http://www.gorillawalker.com/immigration-law-pocket-field-guide-2015.pdf
    • http://www.gorillawalker.com/the-lake-district-and-cumbria-in-recipes-and-photographs.pdf
    • http://www.gorillawalker.com/heat-wave-tuscaloosa.pdf
    • http://www.gorillawalker.com/walks-in-rome.pdf
    • http://www.gorillawalker.com/the-law-of-success-in-sixteen-lessons-complete-and-unabridged.pdf
    • http://www.gorillawalker.com/theft-of-souls-the-trial-of-lawrence-of-arabia.pdf
    • http://www.gorillawalker.com/black-fez-manifesto.pdf
    • http://www.gorillawalker.com/mental-leaps-analogy-in-creative-thought.pdf
    • http://www.gorillawalker.com/a-successful-professional-development-project-s-failure-to-promote-online.pdf
    • http://www.gorillawalker.com/helados-ice-cream-spanish-edition.pdf
    • http://www.gorillawalker.com/john-colter-journey-of-discovery-a-new-look-at-an.pdf
    • http://www.gorillawalker.com/toro-sentado-y-la-batalla-de-little-bighorn-sitting-bull.pdf
    • http://www.gorillawalker.com/polyphenol-may-work-on-parkinson-s-research-at-baylor-college.pdf
    • http://www.gorillawalker.com/approaches-to-teaching-collodi-s-pinocchio-and-its-adaptations-approaches.pdf
    • http://www.gorillawalker.com/first-aid-companion-practical-companions.pdf
    • http://www.gorillawalker.com/existential-foundations-of-medicine-and-psychology.pdf
    • http://www.gorillawalker.com/the-art-of-coaching-effective-strategies-for-school-transformation.pdf
    • http://www.gorillawalker.com/flourishing-in-the-first-five-years-connecting-implications-from-mind.pdf
    • http://www.gorillawalker.com/how-to-study-in-medical-school.pdf
    • http://www.gorillawalker.com/digital-photo-retouching-beauty-fashion-portrait-photography-inspiration-tips-video.pdf
    • http://www.gorillawalker.com/untangled-let-god-loosen-the-knots-of-insecurity-in-your.pdf
    • http://www.gorillawalker.com/the-search-for-modern-china-2nd-edition.pdf
    • http://www.gorillawalker.com/badminton-individualized-instructional-program.pdf
    • http://www.gorillawalker.com/mariposas-nocturnas-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/graphics-programming-methods-charles-river-media-graphics.pdf
    • http://www.gorillawalker.com/encyclopedia-of-oil-painting-techniques-bca-ed.pdf
    • http://www.gorillawalker.com/freya-s-christmas-colouring-book.pdf
    • http://www.gorillawalker.com/the-collected-plays-of-neil-simon-vol-3.pdf
    • http://www.gorillawalker.com/groups-at-work-theory-and-research-applied-social-research-series.pdf
    • http://www.gorillawalker.com/ripped-a-dark-psychological-romance-killer-lips-book-1.pdf
    • http://www.gorillawalker.com/dutch-oven-secrets.pdf
    • http://www.gorillawalker.com/soil-specific-farming-precision-agriculture-advances-in-soil-science.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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