Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbc35f93b99144bc…

MALICIOUS

PDF

43.6 KB Created: 2018-12-02 20:09:56 +03:00 Authoring application: PScript5.dll Version 5.2 (via ePapyrus PSI 8.51)
MD5: ebccc379935169e3a195402cf123c326 SHA-1: f71da6a4e0e325611d17ea1c0b417fd5b561bf01 SHA-256: bbc35f93b99144bc7a18922ad2bee1ae0f8ac9e800489f85540e1a6547d6dfa7
90 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, all pointing to PDFs hosted on www.gorillawalker.com. This suggests a link farm or a distribution point for further malicious content. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document with high confidence. No scripts were extracted from this sample.

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/rethinking-the-holocaust.pdf
    • http://www.gorillawalker.com/womanspirit-rising-a-feminist-reader-in-religion.pdf
    • http://www.gorillawalker.com/african-philosophy-critical-dimensions.pdf
    • http://www.gorillawalker.com/top-10-san-diego-eyewitness-top-10-travel-guide.pdf
    • http://www.gorillawalker.com/rest-unleashed-the-raven-narratives.pdf
    • http://www.gorillawalker.com/conflict-regulation-in-divided-societies.pdf
    • http://www.gorillawalker.com/competition-law-enforcement-and-compliance-across-the-world-a-comparative.pdf
    • http://www.gorillawalker.com/night-at-the-wax-museum-a-lgbt-erotic-short-story.pdf
    • http://www.gorillawalker.com/a-new-illustrated-history-of-the-nazis.pdf
    • http://www.gorillawalker.com/a-practical-guide-to-teaching-reading-skills-at-all-levels.pdf
    • http://www.gorillawalker.com/behavior-in-organizations-10th-edition.pdf
    • http://www.gorillawalker.com/hard-sayings-of-the-bible-hard-sayings-series-the-hard.pdf
    • http://www.gorillawalker.com/prachovske-skaly-podrobna-turisticka-mapa-1-10-000-prachovske-skaly.pdf
    • http://www.gorillawalker.com/comprehensive-oversight-plan-for-southwest-asia-fiscal-year-2014-kindle.pdf
    • http://www.gorillawalker.com/operative-dentistry-volume-i-pathology-of-the-hard-tissues-ofthe.pdf
    • http://www.gorillawalker.com/biogeochemistry-of-ancient-and-modern-environments-proceedings-of-the-fourth.pdf
    • http://www.gorillawalker.com/2nd-international-conference-on-methods-and-models-in-science-and.pdf
    • http://www.gorillawalker.com/tab-board-books-shapes-galore.pdf
    • http://www.gorillawalker.com/arnold-schwarzenegger-taking-part-series.pdf
    • http://www.gorillawalker.com/the-philosophy-of-the-upanishads.pdf
    • http://www.gorillawalker.com/2009-2010-connecticut-restaurants-zagat-restaurant-guides.pdf
    • http://www.gorillawalker.com/jean-shepherd-pomp-and-circumstance-classic-radio-humor.pdf
    • http://www.gorillawalker.com/die-traumkn-pfer-roman-german-edition.pdf
    • http://www.gorillawalker.com/open-mind-women-s-daily-inspiration-for-becoming-mindful.pdf
    • http://www.gorillawalker.com/hayate-the-combat-butler-vol-2-paperback.pdf
    • http://www.gorillawalker.com/adventist-heritage-of-health-hope-and-healing.pdf
    • http://www.gorillawalker.com/berlitz-rush-hour-express-italian-italian-edition-english-and-italian.pdf
    • http://www.gorillawalker.com/essentials-of-corporate-and-capital-formation.pdf
    • http://www.gorillawalker.com/towards-human-development-new-approaches-to-macroeconomics-and-inequality.pdf
    • http://www.gorillawalker.com/the-definitive-guide-to-html5-security.pdf
    • http://www.gorillawalker.com/mystery-of-the-sexes-secrets-of-past-and-future-human.pdf
    • http://www.gorillawalker.com/is-america-in-bible-prophecy-what-you-need-to-know.pdf
    • http://www.gorillawalker.com/home-page-an-introduction-to-web-page-design-first-book.pdf
    • http://www.gorillawalker.com/the-last-man-mitch-rapp.pdf
    • http://www.gorillawalker.com/jessica-rules-the-dark-side.pdf
    • http://www.gorillawalker.com/managing-systematic-and-ethical-public-relations-campaigns.pdf
    • http://www.gorillawalker.com/hearings-before-the-committee-on-interstate-and-foreign-commerce-of.pdf
    • http://www.gorillawalker.com/jaguar-e-type-the-essential-buyer-s-guide.pdf
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    • http://www.gorillawalker.com/dangerous-terrain-mapping-the-female-body-in-gonzales-v-carhart.pdf
    • http://www.gorillawalker.com/a-new-illustrated-history-of-
    • 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/