Malicious PDF — malware analysis report

Static analysis result for SHA-256 41aa7609f41cabc9…

MALICIOUS

PDF

43.2 KB Created: 2018-12-15 08:53:06 +03:00 Authoring application: - (via htmldoc 1.8.23 Copyright 1997-2002 Easy Software Products, All Rights Reserved.)
MD5: 463301577f7a2cf577df27d15e2ccf7a SHA-1: 5a1dfe86767f3413b746b08682ee82317734ae49 SHA-256: 41aa7609f41cabc996ace28a4201102e9818496d6a0983f403b57ce7c3c4507c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which suggests a tactic to drive traffic to external resources. The ML classifier also flagged the PDF as malicious. While no scripts were extracted, the sheer volume of links and the nature of the heuristic indicate a malicious intent, likely to lead users to potentially harmful content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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-idealist-jeffrey-sachs-and-the-quest-to-end-poverty.pdf
    • http://www.gorillawalker.com/kinky-cupcakes.pdf
    • http://www.gorillawalker.com/kuyper-in-america-this-is-where-i-was-meant-to.pdf
    • http://www.gorillawalker.com/holt-spanish-grammar-tutor-for-students-of-spanish-levels-1.pdf
    • http://www.gorillawalker.com/last-year.pdf
    • http://www.gorillawalker.com/reiki-for-beginners-the-complete-guide-to-mastering-reiki-healing.pdf
    • http://www.gorillawalker.com/first-word-philosophy-wittgenstein-austin-cavell-writings-on-ordinary-language.pdf
    • http://www.gorillawalker.com/las-l-grimas-del-cocodrilo-spanish-edition.pdf
    • http://www.gorillawalker.com/once-upon-a-stage.pdf
    • http://www.gorillawalker.com/star-wars-the-action-figure-archive.pdf
    • http://www.gorillawalker.com/north-westhern-thailand-street-city-map.pdf
    • http://www.gorillawalker.com/pocket-prescriber-psychiatry.pdf
    • http://www.gorillawalker.com/1-timothy-biblical-word-by-word-study.pdf
    • http://www.gorillawalker.com/your-favorite-food-part-1-and-virgin-diet-recipes-for.pdf
    • http://www.gorillawalker.com/bandit-invincible-butch-cassidy-five-star-first-edition-western.pdf
    • http://www.gorillawalker.com/the-book-of-enoch-updated.pdf
    • http://www.gorillawalker.com/no-experience-required-watercolor.pdf
    • http://www.gorillawalker.com/cambridge-student-guide-to-twelfth-night-cambridge-student-guides.pdf
    • http://www.gorillawalker.com/marijuana-withdrawal-after-40-years.pdf
    • http://www.gorillawalker.com/meet-the-methodists-revised-an-introduction-to-the-united-methodist.pdf
    • http://www.gorillawalker.com/sanibel-burn-vampire-werewolf-menage-fanged-romance-series-book-2.pdf
    • http://www.gorillawalker.com/btmom-game-aid-for-beyond-the-mountains-of-madness-call.pdf
    • http://www.gorillawalker.com/to-be-a-roman-topics-in-roman-culture.pdf
    • http://www.gorillawalker.com/concept-research-in-food-product-design-and-development.pdf
    • http://www.gorillawalker.com/cultural-animal-reader-for-baumeister-bushman-s-social-psychology-and.pdf
    • http://www.gorillawalker.com/lessons-life-has-taught-me.pdf
    • http://www.gorillawalker.com/black-lagoon-tome-7-french-edition.pdf
    • http://www.gorillawalker.com/the-law-of-letters-of-credit.pdf
    • http://www.gorillawalker.com/the-carbon-diaries-2015.pdf
    • http://www.gorillawalker.com/scamming-101-22-scams-explained-by-arthur-hopkins-kindle-edition.pdf
    • http://www.gorillawalker.com/creating-unforgettable-characters-kindle-edition.pdf
    • http://www.gorillawalker.com/analyse-e-commentario-da-constitui-o-politica-do-imperio-do.pdf
    • http://www.gorillawalker.com/pizzas-rapidas-y-faciles-una-coleccion-de-recetas-originales-que.pdf
    • http://www.gorillawalker.com/the-cook-s-illustrated-complete-book-of-poultry.pdf
    • http://www.gorillawalker.com/her-little-secret.pdf
    • http://www.gorillawalker.com/the-spectacular-spider-man-201-over-the-line-maximum-carnage.pdf
    • http://www.gorillawalker.com/code-of-federal-regulations-title-50-wildlife-and-fisheries-pt.pdf
    • http://www.gorillawalker.com/barcelona-scams-a-visitor-s-guide-to-avoiding-common-street.pdf
    • http://www.gorillawalker.com/seattle-portland-for-dummies-dummies-travel.pdf
    • http://www.gorillawalker.com/homeschooling-in-full-view-a-reader.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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