Malicious PDF — malware analysis report

Static analysis result for SHA-256 121a6f9b3d82986f…

MALICIOUS

PDF

36.1 KB Created: 2020-02-08 18:42:19 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 6.0 (Windows))
MD5: acae6f57a4c66ad72b01cd2792ac7b81 SHA-1: e73264cb5a4b724ffec237306ce9594a8bc7095f SHA-256: 121a6f9b3d82986f52e84ddfd2bddc0136346c1ac2b21e1c17ef11eca1121b92
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on 'gorillawalker.com'. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged the document as malicious, supporting this assessment. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7977

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/las-vegas-and-beyond.pdf
    • http://www.gorillawalker.com/the-cotton-planter-s-manual-being-a-compilation-of-facts.pdf
    • http://www.gorillawalker.com/network-guide-to-networks-networking.pdf
    • http://www.gorillawalker.com/humour-et-surrealisme-chez-trois-humoristes-du-new-yorker-robert.pdf
    • http://www.gorillawalker.com/public-relations-writing-form-style-9th-nineth-edition.pdf
    • http://www.gorillawalker.com/a-history-of-conferences-and-other-proceedings-connected-with-the.pdf
    • http://www.gorillawalker.com/symbolic-computing-with-lisp-and-prolog.pdf
    • http://www.gorillawalker.com/settled-asbestos-dust-sampling-and-analysis.pdf
    • http://www.gorillawalker.com/in-the-basement-of-the-ivory-tower-confessions-of-an.pdf
    • http://www.gorillawalker.com/smile-of-the-midsummer-night-a-picture-of-sweden-haus.pdf
    • http://www.gorillawalker.com/evaluations-pt-2-toxicological-and-environmental.pdf
    • http://www.gorillawalker.com/frank-davis-cooks-cajun-creole-and-cre.pdf
    • http://www.gorillawalker.com/renoir-for-kids-great-art-for-kids-series.pdf
    • http://www.gorillawalker.com/mathematics-and-statistics-for-financial-risk-management-wiley-finance-by.pdf
    • http://www.gorillawalker.com/p-i-p-e-juice-peoples-intimate-pleasures-exposed-p.pdf
    • http://www.gorillawalker.com/cma-part-1-financial-planning-performance-and-control-exam-flashcard.pdf
    • http://www.gorillawalker.com/a-small-pebble-in-a-big-pond.pdf
    • http://www.gorillawalker.com/vancouver-complete-residents-guide.pdf
    • http://www.gorillawalker.com/watch-it-grow-for-young-gardeners.pdf
    • http://www.gorillawalker.com/voodoo-warriors-the-story-of-the-mcdonnell-voodoo-fast-jets.pdf
    • http://www.gorillawalker.com/seinenki-bi-to-kuno-miyoshi-akimitsu-kyoju-kanreki-kinen-ronbunshu.pdf
    • http://www.gorillawalker.com/sourcebook-of-atm-and-ip-internetworking-ieee-press-series-on.pdf
    • http://www.gorillawalker.com/could-it-be-a-movie-how-to-get-your-ideas.pdf
    • http://www.gorillawalker.com/salumi-hc-savory-recipes-and-serving-ideas-for-salame-prosciutto.pdf
    • http://www.gorillawalker.com/fodor-s-new-mexico-5th-edition-fodor-s-gold-guides.pdf
    • http://www.gorillawalker.com/x-rated-adventures-of-an-exploitation-filmmaker.pdf
    • http://www.gorillawalker.com/the-next-generation-of-dads-a-book-about-fathers-mentors.pdf
    • http://www.gorillawalker.com/information-retrieval-in-biomedicine-natural-language-processing-for-knowledge-integration.pdf
    • http://www.gorillawalker.com/prince-charming-must-die-the-grimm-chronicles-book-1.pdf
    • http://www.gorillawalker.com/the-new-zealand-bed-and-breakfast-book-1998.pdf
    • http://www.gorillawalker.com/living-in-balance-complete-set-sessions-1-33-moving-from.pdf
    • http://www.gorillawalker.com/ideas.pdf
    • http://www.gorillawalker.com/breeze-easy-clarinet-method-2.pdf
    • http://www.gorillawalker.com/the-fox-effect-how-roger-ailes-turned-a-network-into.pdf
    • http://www.gorillawalker.com/kelly-rides-a-rogue-wave-hotwife-kelly-book-2.pdf
    • http://www.gorillawalker.com/welcome-to-the-jungle-everything-you-ever-wanted-to-know.pdf
    • http://www.gorillawalker.com/polar-bared-kodiak-point.pdf
    • http://www.gorillawalker.com/theory-and-empirical-research-in-social-entrepreneurship-the-johns-hopkins.pdf
    • http://www.gorillawalker.com/focal-points-in-framed-games-breaking-the-symmetry-lecture-notes.pdf
    • http://www.gorillawalker.com/theory-of-linear-operations-north-holland-mathematical-library.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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