Malicious PDF — malware analysis report

Static analysis result for SHA-256 199e9df0d294c344…

MALICIOUS

PDF

32.1 KB Created: 2020-02-08 18:32:56 +03:00 Authoring application: PageMaker 6.5 (via Acrobat Distiller 3.01 for Windows)
MD5: fd5657065dddf0d7d71b582d7cae108b SHA-1: a491afa6147f09011e04d075bb9208f7f8508d07 SHA-256: 199e9df0d294c344ada0cdf1dafb058e51ffcc356f6d1959cb3cdf844e15e24f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged this PDF as malicious, supporting the suspicious nature of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8447

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/kindergarten-sight-words-level-3-a-kindergarten-sight-word-book.pdf
    • http://www.gorillawalker.com/trolleys-of-the-capital-district-ny-ior-images-of-rail.pdf
    • http://www.gorillawalker.com/hechizos-de-amor-y-sexo-embrujos-sencillos-y-talismanes-para.pdf
    • http://www.gorillawalker.com/night-on-the-milky-way-railway-the-kenji-collection-book.pdf
    • http://www.gorillawalker.com/working-papers-volume-2-to-accompany-weygandt-financial-and-managerial.pdf
    • http://www.gorillawalker.com/don-delillo-s-white-noise-a-reader-s-guide-continuum.pdf
    • http://www.gorillawalker.com/gregory-s-sydney-large-street-directory.pdf
    • http://www.gorillawalker.com/the-safari-bride.pdf
    • http://www.gorillawalker.com/latin-nights-alto-saxophone-and-piano-by-richard-kershaw-2005.pdf
    • http://www.gorillawalker.com/nature-s-yucky-gross-stuff-that-helps-nature-work.pdf
    • http://www.gorillawalker.com/murach-s-html5-and-css3.pdf
    • http://www.gorillawalker.com/recovery-of-metals-from-sludges-and-wastewaters-pollution-technology-review.pdf
    • http://www.gorillawalker.com/el-caribe-y-la-m.pdf
    • http://www.gorillawalker.com/hatha-yoga-practice-disciple-against-wall.pdf
    • http://www.gorillawalker.com/arab-byzantine-coins-an-introduction-with-a-catalogue-of-the.pdf
    • http://www.gorillawalker.com/effective-evangelism.pdf
    • http://www.gorillawalker.com/bare-for-you-outback-skies.pdf
    • http://www.gorillawalker.com/elements-of-literature-pennsylvania-elements-of-literature-student-edition-third.pdf
    • http://www.gorillawalker.com/15-minute-italian-learn-italian-in-just-15-minutes-a.pdf
    • http://www.gorillawalker.com/beautiful-surrender-an-elite-event.pdf
    • http://www.gorillawalker.com/this-shattered-world-starbound.pdf
    • http://www.gorillawalker.com/bushcraft-the-ultimate-bushcraft-101-guide-to-survive-in-the.pdf
    • http://www.gorillawalker.com/geometric-nonlinear-functional-analysis-colloquium-publications.pdf
    • http://www.gorillawalker.com/gerald-murnane-oxford-australian-writers-series.pdf
    • http://www.gorillawalker.com/theoretical-microfluidics-oxford-master-series-in-physics.pdf
    • http://www.gorillawalker.com/christmas-and-santa-claus-folklore-north-american-folklore.pdf
    • http://www.gorillawalker.com/the-blue-cat-of-castle-town.pdf
    • http://www.gorillawalker.com/cheap-fitness-get-fit-on-a-budget-with-resistance-bands.pdf
    • http://www.gorillawalker.com/dinosaurs-a-prehistoric-guide-history-picture-book.pdf
    • http://www.gorillawalker.com/electricity-for-hvac-tape-2-basic-electricity-and-circuits.pdf
    • http://www.gorillawalker.com/an-embarrassment-of-mangoes.pdf
    • http://www.gorillawalker.com/mitch-epstein-family-business.pdf
    • http://www.gorillawalker.com/global-governance-and-the-un-an-unfinished-journey-united-nations.pdf
    • http://www.gorillawalker.com/prospects-and-ambiguities-of-globalization-critical-assessments-at-a-time.pdf
    • http://www.gorillawalker.com/nocturnal-a-novel.pdf
    • http://www.gorillawalker.com/a-man-of-parts-a-novel.pdf
    • http://www.gorillawalker.com/philosophers.pdf
    • http://www.gorillawalker.com/jack-and-the-beanstalk-tell-me-a-story-hardcover-with.pdf
    • http://www.gorillawalker.com/a-year-with-marmalade.pdf
    • http://www.gorillawalker.com/aestheticizing-public-space-street-visual-politics-in-east-asian-cities.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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