Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0b9f495ccc120d5…

MALICIOUS

PDF

43.5 KB Created: 2019-02-12 19:46:32 +03:00 Authoring application: Pages (via Mac OS X 10.11.6 Quartz PDFContext)
MD5: cb58de03e3aef08ec614edefafd925e9 SHA-1: 38dae3e84fe53610fd6a482f5f966ae6f65eb989 SHA-256: b0b9f495ccc120d514d7639fbdf6106296bc5362e6bbd4856651b7e10a69a66a
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, primarily hosted on www.gorillawalker.com. This heuristic firing indicates a link farm, suggesting the document's purpose is to drive traffic to these external resources. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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/shanties-from-the-seven-seas-maritime.pdf
    • http://www.gorillawalker.com/israel-discovering-cultures.pdf
    • http://www.gorillawalker.com/greater-expectations-a-source-book-for-working-with-girls-and.pdf
    • http://www.gorillawalker.com/little-blue-truck-leads-the-way-board-book.pdf
    • http://www.gorillawalker.com/handbook-of-attachment-theory-research-and-clinical-applications.pdf
    • http://www.gorillawalker.com/the-larry-wilde-book-of-limericks-the-larry-wilde-joke.pdf
    • http://www.gorillawalker.com/prepping-survival-box-set-50-activities-to-survive-in-the.pdf
    • http://www.gorillawalker.com/bimbo-takes-the-subway-cassie-s-bimbo-week-book-3.pdf
    • http://www.gorillawalker.com/at-home-la-casa-bilingual-first-books-english-spanish.pdf
    • http://www.gorillawalker.com/timm-rautert-deutsche-in-uniform.pdf
    • http://www.gorillawalker.com/small-affair-acting-edition.pdf
    • http://www.gorillawalker.com/the-waiter-waitress-manual-job-skill-manual-in-marketing.pdf
    • http://www.gorillawalker.com/faith-on-the-road-a-short-theology-of-travel-and.pdf
    • http://www.gorillawalker.com/by-lawrence-revere-playing-blackjack-as-a-busines-revised-edition.pdf
    • http://www.gorillawalker.com/the-ham-whisperer-s-technician-class-license-course.pdf
    • http://www.gorillawalker.com/obata-s-yosemite-note-card-set.pdf
    • http://www.gorillawalker.com/le-ricette-di-nonna-giovannina-l-arte-di-una-cuoca.pdf
    • http://www.gorillawalker.com/luau-like-a-local-the-easy-way.pdf
    • http://www.gorillawalker.com/collide-into-you-a-romantic-body-swap-love-story.pdf
    • http://www.gorillawalker.com/hardline-hacker.pdf
    • http://www.gorillawalker.com/vionna-and-the-vampires-moriarty-lord-of-the-vampires-book.pdf
    • http://www.gorillawalker.com/from-treaty-making-to-treaty-breaking-models-for-asean-external.pdf
    • http://www.gorillawalker.com/dvorak-anton-quartet-no-14-in-a-flat-major-op.pdf
    • http://www.gorillawalker.com/options-futures-and-other-derivatives-6th-edition.pdf
    • http://www.gorillawalker.com/rochestem-edici.pdf
    • http://www.gorillawalker.com/blue-ridge-parkway-guide-volume-2-grandfather-mountain-to-great.pdf
    • http://www.gorillawalker.com/helicopter-dynamic-performance-program-volume-1-engineer-s-manual.pdf
    • http://www.gorillawalker.com/angra-dos-reis-baia-dos-reis-magos.pdf
    • http://www.gorillawalker.com/petrie-s-complete-irish-music-1-582-traditional-melodies-dover.pdf
    • http://www.gorillawalker.com/racehoss-big-emma-s-boy.pdf
    • http://www.gorillawalker.com/yugoslavia-s-adriatic-coast.pdf
    • http://www.gorillawalker.com/by-ingrid-hsieh-yee-organizing-audiovisual-and-electronic-resources-for.pdf
    • http://www.gorillawalker.com/a-comprehensive-bibliography-of-books-on-the-jesuits.pdf
    • http://www.gorillawalker.com/titus-la-clemenza-di-tito-an-opera-in-two-acts.pdf
    • http://www.gorillawalker.com/the-eyes-of-lira-kazan.pdf
    • http://www.gorillawalker.com/roche-limit-clandestiny.pdf
    • http://www.gorillawalker.com/sacred-sense-discovering-the-wonder-of-god-s-word-and.pdf
    • http://www.gorillawalker.com/dead-to-rights-retribution-official-strategy-guide-official-strategy-guides.pdf
    • http://www.gorillawalker.com/women-s-agency-and-social-change-assam-and-beyond-sage.pdf
    • http://www.gorillawalker.com/glencoe-world-history-standardized-test-practice-workbook-student-edition-world.pdf
    • http://www.gorillawalker.com/handbook-of-attachment-the
    • 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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