Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba6505871122a38e…

MALICIOUS

PDF

43.4 KB Created: 2018-11-23 21:09:06 +03:00 Authoring application: Acrobat 5.0 Scan Plug-in for Windows (via Adobe PDF Library 5.0.2)
MD5: 619254aa89918dfb5e6d35b75a23bce6 SHA-1: 2e6918f135c6719fe821e0da3675177d7ce4b29e SHA-256: ba6505871122a38eccccf266dc9d30722bd878ee45a657720287d959b69c47c3
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on gorillawalker.com. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads disguised as legitimate documents. The ML classifier also flagged this PDF as malicious with a high probability. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8452

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/principles-of-osteopathic-technic.pdf
    • http://www.gorillawalker.com/asmp-professional-business-practices-in-photography-text-only-7th-seventh.pdf
    • http://www.gorillawalker.com/essentials-of-corporate-finance-6th-edition.pdf
    • http://www.gorillawalker.com/ensayos-olvidados-sobre-don-ricardo-jimenez-spanish-edition.pdf
    • http://www.gorillawalker.com/road-biking-colorado-a-guide-to-the-state-s-best.pdf
    • http://www.gorillawalker.com/the-challenge-of-democracy-paperback.pdf
    • http://www.gorillawalker.com/alternative-revolution-magazine-romanie-smith-special-edition.pdf
    • http://www.gorillawalker.com/practical-guide-legal-writing-method-3rd-edition-writing-essay-exams.pdf
    • http://www.gorillawalker.com/orientalism-poetry-and-millennium.pdf
    • http://www.gorillawalker.com/the-children-of-atomic-bomb-survivors-a-genetic-study.pdf
    • http://www.gorillawalker.com/soups-for-planet-earth.pdf
    • http://www.gorillawalker.com/reflections-windows-on-the-past.pdf
    • http://www.gorillawalker.com/orchard-irrigation-and-soil-management-practices.pdf
    • http://www.gorillawalker.com/plague-inc-kindle-edition.pdf
    • http://www.gorillawalker.com/the-wright-chamberlin-genealogy-from-immigrant-ancestors-to-present-generations.pdf
    • http://www.gorillawalker.com/wheat-free-recipes-the-complete-guide-to-breakfast-lunch-dinner.pdf
    • http://www.gorillawalker.com/an-unexpected-light-travels-in-afghanistan-2002-publication.pdf
    • http://www.gorillawalker.com/some-men-are-lookers-a-continuation-of-the-buddies-cycle.pdf
    • http://www.gorillawalker.com/the-girl-without-a-name.pdf
    • http://www.gorillawalker.com/notes-and-comments-on-vertebrate-paleontology-1968-edition.pdf
    • http://www.gorillawalker.com/architecture-at-the-edge-of-everything-else-work-books.pdf
    • http://www.gorillawalker.com/mathematical-recreation-and-essays.pdf
    • http://www.gorillawalker.com/operation-and-calibration-of-the-electron-microscope-philips-technical-library.pdf
    • http://www.gorillawalker.com/return-to-tsugaru-travels-of-a-purple-tramp.pdf
    • http://www.gorillawalker.com/climate-policy-and-nonrenewable-resources-the-green-paradox-and-beyond.pdf
    • http://www.gorillawalker.com/alleluia-keyboard-organ-or-piano-sheet-music.pdf
    • http://www.gorillawalker.com/destination-unexpected.pdf
    • http://www.gorillawalker.com/college-keyboarding-typewriting.pdf
    • http://www.gorillawalker.com/the-founders-gifts-the-symbiotic-sword-kindle-edition.pdf
    • http://www.gorillawalker.com/runaways-how-the-sixties-counterculture-shaped-today-s-practices-and.pdf
    • http://www.gorillawalker.com/border-people-life-and-society-in-the-u-s-mexico.pdf
    • http://www.gorillawalker.com/the-flipped-reading-block-making-it-work-how-to-flip.pdf
    • http://www.gorillawalker.com/art-of-soul-winning.pdf
    • http://www.gorillawalker.com/a-beautiful-mess-beautiful-mess-book-1-unabridged-audible-audio.pdf
    • http://www.gorillawalker.com/master-narratives-of-islamist-extremism.pdf
    • http://www.gorillawalker.com/french-for-beginners-passport-s-language-guides.pdf
    • http://www.gorillawalker.com/2eme-rep-algerie-tchad-djibouti-kolwezi-beyrouth-collection-troupes-de.pdf
    • http://www.gorillawalker.com/pricing-a-small-business-for-sale-a-practical-guide-for.pdf
    • http://www.gorillawalker.com/risk-management-approaches-for-fixed-income-markets.pdf
    • http://www.gorillawalker.com/girl-online-2.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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