Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6590bac42b743f…

MALICIOUS

PDF

41.6 KB Created: 2018-11-30 20:24:00 +03:00 Authoring application: DocBook XSL Stylesheets with Apache FOP (via Apache FOP Version 2.1)
MD5: 1481bad12fe94922a91bf002626cfcb4 SHA-1: 611d3c9e847374281db56067552bd530d3625bf0 SHA-256: dc6590bac42b743f079cfb5109f3871d4894b6abaa6d67bf5620a7c9aad350f7
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body contains obfuscated text and embedded URLs, suggesting a link farm or redirection scheme rather than direct content delivery. The primary purpose appears to be to host numerous links to external PDF files, likely for SEO manipulation or to distribute malicious content indirectly.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/encoder-pro-professional-updateable-single-user.pdf
    • http://www.gorillawalker.com/political-ethnography-what-immersion-contributes-to-the-study-of-power.pdf
    • http://www.gorillawalker.com/introduction-to-theoretical-geophysics.pdf
    • http://www.gorillawalker.com/turn-turn-turn-the-60s-folk-rock-revolution.pdf
    • http://www.gorillawalker.com/dr-mike-s-horsemanship-riding-exercises.pdf
    • http://www.gorillawalker.com/of-two-minds-an-anthropologist-looks-at-american-psychiatry-vintage.pdf
    • http://www.gorillawalker.com/a-memoir-on-love-life.pdf
    • http://www.gorillawalker.com/the-science-of-everyday-life-why-teapots-dribble-toast-burns.pdf
    • http://www.gorillawalker.com/zombie-zone-zero-2-all-the-tides-of-the-world.pdf
    • http://www.gorillawalker.com/vampire-hunter-d-volume-21.pdf
    • http://www.gorillawalker.com/operational-amplifiers-and-linear-integrated-circuits-6th-edition.pdf
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    • http://www.gorillawalker.com/palliative-care-nursing-caring-for-suffering-patients.pdf
    • http://www.gorillawalker.com/basic-tv-technology-digital-and-analog-media-manuals.pdf
    • http://www.gorillawalker.com/the-modern-element-essays-on-contemporary-poetry.pdf
    • http://www.gorillawalker.com/fodor-s-amsterdam-with-the-best-of-the-netherlands-full.pdf
    • http://www.gorillawalker.com/bipolar-psychopharmacotherapy-caring-for-the-patient.pdf
    • http://www.gorillawalker.com/the-electric-jesus-the-healing-journey-of-a-contemporary-gnostic.pdf
    • http://www.gorillawalker.com/cosmologies-of-credit-transnational-mobility-and-the-politics-of-destination.pdf
    • http://www.gorillawalker.com/alfred-classic-festival-solos-e-flat-baritone-saxophone-volume-1.pdf
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    • http://www.gorillawalker.com/the-blanket-hornpipe-a-pompey-saga.pdf
    • http://www.gorillawalker.com/frostbite-vampire-academy-book-2.pdf
    • http://www.gorillawalker.com/violence-all-around.pdf
    • http://www.gorillawalker.com/livstycken-om-kollektivets-roster-varuvarldens-myter-kvinnors-liv-och-dikt.pdf
    • http://www.gorillawalker.com/undercover-lover-a-bbw-story.pdf
    • http://www.gorillawalker.com/capital-technology-and-labor-in-the-new-global-economy-aei.pdf
    • http://www.gorillawalker.com/rock-materials.pdf
    • http://www.gorillawalker.com/worth-dying-for.pdf
    • http://www.gorillawalker.com/pacemaker-world-geography-and-cultures-teacher-s-edition.pdf
    • http://www.gorillawalker.com/indigenous-conflict-management-strategies-in-west-africa-beyond-right-and.pdf
    • http://www.gorillawalker.com/tender-points-a-fibromyalgia-memoir-filled-with-practical-advice.pdf
    • http://www.gorillawalker.com/a-halloween-scare-in-ottawa.pdf
    • http://www.gorillawalker.com/spoken-burmese-book-1-spoken-language-series.pdf
    • http://www.gorillawalker.com/time-of-the-phoenix-journals-of-the-peregrine-book-1.pdf
    • http://www.gorillawalker.com/precious-cocoons.pdf
    • http://www.gorillawalker.com/quotes-love-humor-bilingual-a-e.pdf
    • http://www.gorillawalker.com/the-divine-comedy-vol-3-paradise.pdf
    • http://www.gorillawalker.com/morphology-and-syntax-tools-for-analyzing-the-world-s-languages.pdf
    • http://www.goril
    • 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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