Malicious PDF — malware analysis report

Static analysis result for SHA-256 e47c5615e632b44d…

MALICIOUS

PDF

33.1 KB Created: 2019-07-21 07:34:31 +03:00 Authoring application: - (via htmldoc 1.8.23 Copyright 1997-2002 Easy Software Products, All Rights Reserved.)
MD5: 23b603ce60c6f5af2e9f47ef2d2aab64 SHA-1: c1c472a8c7f365be9992368945d83f6bc5394d66 SHA-256: e47c5615e632b44db52dc8a7d443f426dbaf5296426a447ff83c9262b9b3fefe
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and contains a large number of external links, indicating a potential SEO manipulation or content distribution scheme. The primary heuristic identified a 'PDF_SEO_LINK_FARM' with 32 external links, predominantly hosted on 'www.gorillawalker.com'. No scripts were extracted from this sample, and the document body was unreadable, limiting the ability to determine the exact malicious intent beyond link farming.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/a-handbook-for-dna-encoded-chemistry-theory-and-applications-for.pdf
    • http://www.gorillawalker.com/the-meaningful-life-how-to-live-the-life-you-love.pdf
    • http://www.gorillawalker.com/star-trek-new-frontier-gods-above.pdf
    • http://www.gorillawalker.com/no-bag-limit-liberty-springs-wyoming-1-siren-publishing-menage.pdf
    • http://www.gorillawalker.com/collins-speak-spanish.pdf
    • http://www.gorillawalker.com/imagine-that-devotions-for-teens-by-teens.pdf
    • http://www.gorillawalker.com/principios-de-analisis-instrumental-principles-of-instrumental-analysis-spanish-edition.pdf
    • http://www.gorillawalker.com/control-alt-revolt-digital.pdf
    • http://www.gorillawalker.com/thirty-three-miniatures-mathematical-and-algorithmic-applications-of-linear-algebra.pdf
    • http://www.gorillawalker.com/international-migration-and-citizenship-today.pdf
    • http://www.gorillawalker.com/franziska-gro-druck-ein-modernes-mysterium-in-f-nf-akten.pdf
    • http://www.gorillawalker.com/the-gods-in-their-cities-geomantic-locales-of-the-ray.pdf
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    • http://www.gorillawalker.com/futanari-planet-3-transformation.pdf
    • http://www.gorillawalker.com/heart-of-darkness-sparknotes-literature-guide-sparknotes-literature-guide-series.pdf
    • http://www.gorillawalker.com/elephant-reaktion-books-animal.pdf
    • http://www.gorillawalker.com/starting-from-scrap-an-entrepreneurial-success-story.pdf
    • http://www.gorillawalker.com/diccionario-manual-de-teolog-a-spanish-edition.pdf
    • http://www.gorillawalker.com/cheapskate-s-guide-to-gluten-free-living-a-quick-start.pdf
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    • http://www.gorillawalker.com/vladimir-propp-and-the-universal-folktale-recommissioning-an-old-paradigm.pdf
    • http://www.gorillawalker.com/set-theory-and-its-logic-rev-edition.pdf
    • http://www.gorillawalker.com/black-architecture.pdf
    • http://www.gorillawalker.com/paper-magic-pop-up-paper-craft-origamic-architecture.pdf
    • http://www.gorillawalker.com/students-guide-to-philosophy-guides-to-major-disciplines.pdf
    • http://www.gorillawalker.com/practical-photovoltaics-electricity-from-solar-cells-3rd-edition.pdf
    • http://www.gorillawalker.com/hey-there-dumpling-100-recipes-for-dumplings-buns-noodles-and.pdf
    • http://www.gorillawalker.com/schaum-s-easy-outline-of-electric-circuits.pdf
    • http://www.gorillawalker.com/the-tombstone-in-israels-military-cemetery-since-1948.pdf
    • http://www.gorillawalker.com/systemized-orthodontic-treatment-mechanics-author-richard-p-mclaughlin-published-on.pdf
    • http://www.gorillawalker.com/the-orwell-mystique-a-study-in-male-ideology.pdf
    • http://www.gorillawalker.com/the-world-s-game-a-history-of-soccer-illinois-history.pdf
    • http://www.gorillawalker.com/general-aviation-aircraft-design-applied-methods-and-procedures.pdf
    • http://www.gorillawalker.com/the-true-keeps-calm-biding-its-story-sawtooth-poetry-prize.pdf
    • http://www.gorillawalker.com/roger-zelazny-s-visual-guide-to-castle-amber.pdf
    • http://www.gorillawalker.com/mr-rogers-moving-first-experiences.pdf
    • http://www.gorillawalker.com/paris-national-geographic-destination-city-map.pdf
    • http://www.gorillawalker.com/thirty-three-miniatures-mathe
    • 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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