Malicious PDF — malware analysis report

Static analysis result for SHA-256 4577c212746b9a22…

MALICIOUS

PDF

45.7 KB Created: 2018-12-14 20:05:12 +03:00 Authoring application: dvipsk 5.58f Copyright 1986, 1994 Radical Eye Software (via Acrobat Distiller 3.0 f r Macintosh)
MD5: 8b47dce9e8f301998ba64e48fbbf8baf SHA-1: 44b9e20a97f6d3f45cadfb3dc5f9fbad84a9ffef SHA-256: 4577c212746b9a22e54a7174878bb66b27f0d8aa1828433d77af166d4b25c64b
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The primary attack pattern appears to be SEO manipulation or the distribution of further malicious content through these linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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-duel-for-france-1944-the-men-and-battles-that.pdf
    • http://www.gorillawalker.com/the-adventures-of-madame-storey-volume-8.pdf
    • http://www.gorillawalker.com/imray-chart-a233-double-sided-sheet-combining-charts-a231-and.pdf
    • http://www.gorillawalker.com/steck-vaughn-en-parajes-leveled-reader-bookroom-package-las-estaciones.pdf
    • http://www.gorillawalker.com/brand-child-remarkable-insights-into-the-minds-of-today-s.pdf
    • http://www.gorillawalker.com/modern-college-algebra-and-trigonometry.pdf
    • http://www.gorillawalker.com/god-s-work-how-to-do-it-pastors-members-deacons.pdf
    • http://www.gorillawalker.com/the-atlantic-coast-surf-clam-with-a-partial-bibliography-u.pdf
    • http://www.gorillawalker.com/maternal-and-child-health-global-challenges-programs-and-policies.pdf
    • http://www.gorillawalker.com/teach-like-a-champion-2-0-62-techniques-that-put.pdf
    • http://www.gorillawalker.com/all-fired-up-250-fresh-and-flavorful-grilling-recipes.pdf
    • http://www.gorillawalker.com/the-music-in-the-fairy-queen-english-opera-1692-the.pdf
    • http://www.gorillawalker.com/comentario-exeg-tico-al-texto-griego-del-n-t-marcos.pdf
    • http://www.gorillawalker.com/shattered-broken-and-reborn.pdf
    • http://www.gorillawalker.com/una-familia-para-rodolfo-spanish-edition.pdf
    • http://www.gorillawalker.com/lirael-old-kingdom.pdf
    • http://www.gorillawalker.com/francis-scott-key-s-star-spangled-banner-step-into-reading.pdf
    • http://www.gorillawalker.com/fortissimo-audio-cd-set-4-cds.pdf
    • http://www.gorillawalker.com/chiropractic-physiology-a-review-of-scientific-principles-as-related-to.pdf
    • http://www.gorillawalker.com/victor-salmones.pdf
    • http://www.gorillawalker.com/extreme-canvas-2-the-golden-age-of-hand-painted-movie.pdf
    • http://www.gorillawalker.com/strategic-foundations-of-general-equilibrium-dynamic-matching-and-bargaining-games.pdf
    • http://www.gorillawalker.com/long-term-care-managing-across-the-continuum-3rd-edition.pdf
    • http://www.gorillawalker.com/athens-encounter.pdf
    • http://www.gorillawalker.com/santiago-chile-tour-a-self-guided-pictorial-walking-tour-visual.pdf
    • http://www.gorillawalker.com/this-dom-devlin-black-book-3-kindle-edition.pdf
    • http://www.gorillawalker.com/the-21st-century-novel-notes-from-the-edinburgh-world-writers.pdf
    • http://www.gorillawalker.com/great-baking-recipes-great-recipes-kindle-edition.pdf
    • http://www.gorillawalker.com/poetry-slam-word-up-2-kuckuck-edition-german-edition.pdf
    • http://www.gorillawalker.com/edp-auditing-a-primer.pdf
    • http://www.gorillawalker.com/deomans-of-faerel-world-of-faerel.pdf
    • http://www.gorillawalker.com/dc-adventures-heroes-and-villains-vol-2.pdf
    • http://www.gorillawalker.com/governing-now-grassroots-activism-in-the-national-organization-for-women.pdf
    • http://www.gorillawalker.com/die-bewertung-nichtnotierter-anteile-an-kapitalgesellschaften-im-rahmen-der-verm.pdf
    • http://www.gorillawalker.com/the-tax-and-legal-playbook-game-changing-solutions-to-your.pdf
    • http://www.gorillawalker.com/cinderella-and-the-colonel-timeless-fairy-tales-book-3-kindle.pdf
    • http://www.gorillawalker.com/the-2011-import-and-export-market-for-blankets-and-travel.pdf
    • http://www.gorillawalker.com/organic-chemical-synthesis-architecture-at-the-molecular-level-new-series.pdf
    • http://www.gorillawalker.com/hast-du-jemals-ein-alligator-in-deinem-garten-gesehen-german.pdf
    • http://www.gorillawalker.com/las-torres-de-febrero-the-towers-of-february-las-tres.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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