Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ef286572211d8fc…

MALICIOUS

PDF

41.2 KB Created: 2018-11-23 08:06:08 +03:00 Authoring application: Word (via Acrobat PDFMaker 15 for Word)
MD5: 1d504a9aec14e55f6b6a5eba80593cf0 SHA-1: f19fc4cf5862d32d18b054546a43eea5f524699c SHA-256: 4ef286572211d8fcbea3c2e6cc3f1228e8506882a4db07e95c6b4dc33b43a107
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/tobacco-specific-n-nitrosamines-recent-advances.pdf
    • http://www.gorillawalker.com/what-if-your-best-friend-were-blue.pdf
    • http://www.gorillawalker.com/italian-popular-tales-italian-popular-tales.pdf
    • http://www.gorillawalker.com/the-unfolding-drama-of-redemption.pdf
    • http://www.gorillawalker.com/making-love-better-than-ever.pdf
    • http://www.gorillawalker.com/streetwise-fort-worth-map-laminated-city-center-street-map-of.pdf
    • http://www.gorillawalker.com/religion-and-public-policy-human-rights-conflict-and-ethics.pdf
    • http://www.gorillawalker.com/tunisia-national-map-michelin-national-maps-by-michelin-published-by.pdf
    • http://www.gorillawalker.com/language-of-spanish-dance.pdf
    • http://www.gorillawalker.com/my-food-pyramid.pdf
    • http://www.gorillawalker.com/constantine-and-the-bishops-the-politics-of-intolerance-ancient-society.pdf
    • http://www.gorillawalker.com/gradiva-german-edition.pdf
    • http://www.gorillawalker.com/parturient-hypocalcemia-based-on-a-conference-on-parturient-paresis-in.pdf
    • http://www.gorillawalker.com/volume-1-modern-electrochemistry-print-replica-kindle-edition.pdf
    • http://www.gorillawalker.com/medullaza.pdf
    • http://www.gorillawalker.com/windows-8-35-essential-tips-for-beginners-updated-november-2014.pdf
    • http://www.gorillawalker.com/ship-ablaze-the-tragedy-of-the-steamboat-general-slocum.pdf
    • http://www.gorillawalker.com/prodigios-de-la-rosa-de-jerico-spanish-edition.pdf
    • http://www.gorillawalker.com/permaculture-a-beginners-guide.pdf
    • http://www.gorillawalker.com/policy-and-practice-in-promoting-public-health-published-in-association.pdf
    • http://www.gorillawalker.com/renewable-energy-resources.pdf
    • http://www.gorillawalker.com/the-swing-book.pdf
    • http://www.gorillawalker.com/attention-deficit-hyperactivity-disorder-what-does-it-mean-to-have.pdf
    • http://www.gorillawalker.com/gay-rights-and-american-law.pdf
    • http://www.gorillawalker.com/play-411-2001-a-guide-to-entertainment-resources-and-activities.pdf
    • http://www.gorillawalker.com/industrial-trinidad.pdf
    • http://www.gorillawalker.com/asian-dance-world-of-dance-chelsea-house-hardcover-kindle-edition.pdf
    • http://www.gorillawalker.com/vienna-the-danube-valley-with-the-best-walking-tours-wine.pdf
    • http://www.gorillawalker.com/red-all-out-of-pad-with-magnet.pdf
    • http://www.gorillawalker.com/lebanon-tourist-map.pdf
    • http://www.gorillawalker.com/visual-modeling-with-rational-rose-2000-and-uml-2nd-edition.pdf
    • http://www.gorillawalker.com/campo-de-guerra-spanish-edition.pdf
    • http://www.gorillawalker.com/defining-and-re-defining-diaspora-from-theory-to-reality-at.pdf
    • http://www.gorillawalker.com/maiden-voyage-jazz-drums-play-a-long-styles-analysis-cd.pdf
    • http://www.gorillawalker.com/down-home-an-accidental-vampire-future-novella-kindle-edition.pdf
    • http://www.gorillawalker.com/history-begins-at-sumer.pdf
    • http://www.gorillawalker.com/pressure-airships.pdf
    • http://www.gorillawalker.com/healing-the-clan-alaskan-tigers-book-10.pdf
    • http://www.gorillawalker.com/global-heritage-a-reader-wiley-blackwell-readers-in-anthropology.pdf
    • http://www.gorillawalker.com/my-pretty-scrapbook-or-picture-pages-and-pleasant-stories-for.pdf
    • http://www.gorillawal
    • 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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