Malicious PDF — malware analysis report

Static analysis result for SHA-256 650735ecc9e92dcb…

MALICIOUS

PDF

45.2 KB Created: 2018-12-15 08:11:15 +03:00 Authoring application: PFU ScanSnap Manager 4.2.14 (via Adobe PDF Scan Library 2.3)
MD5: 674ab5310e706aa36b60133fbd7d717b SHA-1: d941f96fa07924c22cd9e8232d72809c1ce447aa SHA-256: 650735ecc9e92dcb9f699fbcde40f7c1aa99b53883258b1774e62a8dbbd78301
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of linked PDFs suggests a coordinated effort to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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/death-and-the-king-s-horseman-a-play.pdf
    • http://www.gorillawalker.com/a-maths-journey-through-the-human-body-go-figure.pdf
    • http://www.gorillawalker.com/the-damned-engineers.pdf
    • http://www.gorillawalker.com/pasternak-s-dr-zhivago-a-critical-companion-northwestern-aatseel-critical.pdf
    • http://www.gorillawalker.com/liposomes-drugs-and-immunocompetent-cell-function.pdf
    • http://www.gorillawalker.com/becoming-fluent-how-cognitive-science-can-help-adults-learn-a.pdf
    • http://www.gorillawalker.com/rammed-earth-design-and-construction-guidelines-ep-62.pdf
    • http://www.gorillawalker.com/street-fighter-anniversary-collection-official-strategy-guide-bradygames.pdf
    • http://www.gorillawalker.com/kris-longknife-defender.pdf
    • http://www.gorillawalker.com/quality-of-experience-advanced-concepts-applications-and-methods-t-labs.pdf
    • http://www.gorillawalker.com/metal-semiconductor-interfaces.pdf
    • http://www.gorillawalker.com/the-6-most-important-decisions-you-ll-ever-make-personal.pdf
    • http://www.gorillawalker.com/101-muscle-building-workouts-nutrition-plans-101-workouts.pdf
    • http://www.gorillawalker.com/white-enough-to-be-american-race-mixing-indigenous-people-and.pdf
    • http://www.gorillawalker.com/pulmonary-pathology-tumors.pdf
    • http://www.gorillawalker.com/dank-the-quest-for-the-very-best-marijuana-a-breeder.pdf
    • http://www.gorillawalker.com/sallust-s-bellum-catilinae-american-philological-association-classical-texts-with.pdf
    • http://www.gorillawalker.com/salvaged-kindle-edition.pdf
    • http://www.gorillawalker.com/water-a-primer.pdf
    • http://www.gorillawalker.com/elvis-hank-and-me-making-musical-history-on-the-louisiana.pdf
    • http://www.gorillawalker.com/another-country-navigating-the-emotional-terrain-of-our-elders.pdf
    • http://www.gorillawalker.com/windows-to-heaven-introducing-icons-to-protestants-and-catholics.pdf
    • http://www.gorillawalker.com/das-pragmatische-informationssystem-von-betrieben-grundlagen-zur-gestaltung-des-haushaltsmittel.pdf
    • http://www.gorillawalker.com/ordinary-light-a-memoir.pdf
    • http://www.gorillawalker.com/a-prophetic-vision-for-the-21st-century-a-spiritual-map.pdf
    • http://www.gorillawalker.com/federico-diaz-outside-itself.pdf
    • http://www.gorillawalker.com/temas-clave-biologia-celular-e-histologia-board-review-series-spanish.pdf
    • http://www.gorillawalker.com/att-2-business-taxation-accounting-principles-fa-2012-revision-kit.pdf
    • http://www.gorillawalker.com/mrs-big.pdf
    • http://www.gorillawalker.com/crafting-and-executing-strategy-the-quest-for-competitive-advantage-concepts.pdf
    • http://www.gorillawalker.com/50-delicious-pumpkin-dessert-recipes-pumpkin-pie-pumpkin-cookies-pumpkin.pdf
    • http://www.gorillawalker.com/sound-innovations-for-concert-band-with-cd-and-dvd-for.pdf
    • http://www.gorillawalker.com/the-april-poems.pdf
    • http://www.gorillawalker.com/all-about-autumn-coloring-book-volume-2-art-filled-fun.pdf
    • http://www.gorillawalker.com/words-from-the-peaks-collected-haiku-1998-2004.pdf
    • http://www.gorillawalker.com/the-pharmacological-basis-of-therapeutics-5th-ed.pdf
    • http://www.gorillawalker.com/usagi-yojimbo-volume-9-daisho-2nd-edition-usagi-yojimbo-usagi.pdf
    • http://www.gorillawalker.com/political-marketing-theoretical-and-strategic-foundations.pdf
    • http://www.gorillawalker.com/a-demonstration-of-the-gross-and-fundamental-errors-kindle-edition.pdf
    • http://www.gorillawalker.com/travel-secrets-insider-guide-to-planning-affording-and-taking-more.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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