Malicious PDF — malware analysis report

Static analysis result for SHA-256 64ab6c62bb05e610…

MALICIOUS

PDF

42.7 KB Created: 2018-11-14 08:16:20 +03:00 Authoring application: LaTeX with hyperref package (via dvips + ps2pdf)
MD5: 6d46082b5e4af2097aa991111abd947b SHA-1: 05ce073e51a66aae607a7b15d4d8fc5fb7f28869 SHA-256: 64ab6c62bb05e610374c677815e7c71f6f22c4bb2629f2f19fe647815fcc31c0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm or SEO manipulation tactic, which can be used to distribute malicious content or improve search engine rankings for malicious sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/interpersonal-communication-everyday-encounters-available-titles-cengagenow.pdf
    • http://www.gorillawalker.com/the-art-architecture-of-the-incas.pdf
    • http://www.gorillawalker.com/neurodegenerative-diseases-rhone-poulenc-rorer-round-table-conferences.pdf
    • http://www.gorillawalker.com/steve-jobs-and-philosophy-popular-culture-and-philosophy.pdf
    • http://www.gorillawalker.com/jla-book-1-new-world-order.pdf
    • http://www.gorillawalker.com/american-home-from-colonial-simplicity-to-the-modern-adventure.pdf
    • http://www.gorillawalker.com/handbook-of-public-administration-third-edition-public-administration-and-public.pdf
    • http://www.gorillawalker.com/the-lost-history-of-peter-the-patrician-an-account-of.pdf
    • http://www.gorillawalker.com/carrier-life-aboard-a-world-war-ii-aircraft-carrier.pdf
    • http://www.gorillawalker.com/fiscal-aspects-of-aviation-management-southern-illinois-university-press-series.pdf
    • http://www.gorillawalker.com/the-oxford-handbook-of-thinking-and-reasoning-oxford-library-of.pdf
    • http://www.gorillawalker.com/sustainable-micro-irrigation-design-systems-for-agricultural-crops-methods-and.pdf
    • http://www.gorillawalker.com/joan-of-arc-a-history.pdf
    • http://www.gorillawalker.com/by-timothy-rasinski-vocabulary-ladders-understanding-word-nuances-level-4.pdf
    • http://www.gorillawalker.com/the-lost-reflection.pdf
    • http://www.gorillawalker.com/key-concepts-in-sport-and-exercise-sciences-sage-key-concepts.pdf
    • http://www.gorillawalker.com/fambidzano-ecumenical-movement-of-zimbabwean-independent-churches.pdf
    • http://www.gorillawalker.com/the-matador-s-cape-america-s-reckless-response-to-terror.pdf
    • http://www.gorillawalker.com/turtle-trouble-the-scatterbrained-magician-series-book-2.pdf
    • http://www.gorillawalker.com/the-light-before-christmas.pdf
    • http://www.gorillawalker.com/annual-journal.pdf
    • http://www.gorillawalker.com/professional-review-guide-for-the-ccs-p-examination-2010-edition.pdf
    • http://www.gorillawalker.com/sacred-places-war-memorials-in-the-australian-landscape.pdf
    • http://www.gorillawalker.com/i-m-growing.pdf
    • http://www.gorillawalker.com/counterevolution.pdf
    • http://www.gorillawalker.com/lost-lake-a-jippsy-russ-adventure.pdf
    • http://www.gorillawalker.com/asthma-current-topics-and-reviews.pdf
    • http://www.gorillawalker.com/politics-and-the-sacred.pdf
    • http://www.gorillawalker.com/rand-mcnally-folded-map-brooklyn-ny-rand-mcnally-streets-of.pdf
    • http://www.gorillawalker.com/modern-practice-of-the-electric-telegraph-a-handbook-for-electricians.pdf
    • http://www.gorillawalker.com/hal-leonard-christmas-carols-for-band-or-brass-choir-second.pdf
    • http://www.gorillawalker.com/baedeker-s-lisbon-aa-baedeker-s.pdf
    • http://www.gorillawalker.com/session-seven-changes-the-succubus-sub-book-7.pdf
    • http://www.gorillawalker.com/whitewater-rafting-an-outdoor-adventure-activity-for-individuals-with-mental.pdf
    • http://www.gorillawalker.com/how-to-sell-long-term-care-insurance-to-mr-and.pdf
    • http://www.gorillawalker.com/gwathmey-siegel-buildings-and-projects-2002-2012.pdf
    • http://www.gorillawalker.com/willie-pep-the-will-o-the-wisp.pdf
    • http://www.gorillawalker.com/international-law-the-environment.pdf
    • http://www.gorillawalker.com/practical-guide-to-north-indian-classical-vocal-music-the-ten.pdf
    • http://www.gorillawalker.com/a-practical-approach-to-neurophysiologic-intraoperative-monitoring-second-edition.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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