Malicious PDF — malware analysis report

Static analysis result for SHA-256 840e516e4889469c…

MALICIOUS

PDF

34.2 KB Created: 2019-09-02 22:00:13 +03:00 Authoring application: PageMaker 6.5 (via Acrobat Distiller 3.01 for Windows)
MD5: d61069b8dfa6e1a70d7c01e3a9027eab SHA-1: 31316555c56be3fdff1b7eb16e5494c9a0e49d4a SHA-256: 840e516e4889469c480332bcc4abaf3ccc08f32390cebfbae2f0ced38eae82ed
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 pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8313

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/brother-astronomer-adventures-of-a-vatican-scientist.pdf
    • http://www.gorillawalker.com/conscious-sedation-1e.pdf
    • http://www.gorillawalker.com/ch-i-the-power-within.pdf
    • http://www.gorillawalker.com/at-close-of-day.pdf
    • http://www.gorillawalker.com/all-in-one-pmp-exam-prep-kit-pmp-book-8.pdf
    • http://www.gorillawalker.com/cool-colleges-101-peterson-s-cool-colleges-101.pdf
    • http://www.gorillawalker.com/john-henry-newman-centenary-essays.pdf
    • http://www.gorillawalker.com/die-bedeutung-der-freiheitsstrafe-f-r-die-erziehung-junger-rechtsbrecher.pdf
    • http://www.gorillawalker.com/the-railway-children-oxford-children-s-classics.pdf
    • http://www.gorillawalker.com/the-pop-up-mickey-mouse-disney-vintage-collection-republished-from.pdf
    • http://www.gorillawalker.com/rheumatoid-arthritis-3rd-edition.pdf
    • http://www.gorillawalker.com/exam-ref-70-486-developing-asp-net-mvc-4-web.pdf
    • http://www.gorillawalker.com/plumbing-repairs-simplified.pdf
    • http://www.gorillawalker.com/summer-bridge-middle-school-grades-7-8-summer-bridge-activities.pdf
    • http://www.gorillawalker.com/underbelly-the-gangland-war.pdf
    • http://www.gorillawalker.com/louis-johnson-and-the-arming-of-america-the-roosevelt-and.pdf
    • http://www.gorillawalker.com/know-your-trucks.pdf
    • http://www.gorillawalker.com/rib-waveguide-theory-by-the-spectral-index-method-electronic-and.pdf
    • http://www.gorillawalker.com/harnwegsinfektionen-bei-frauen-erfahrungen-und-behandlungserfolg-einer-betroffenen-german-edition.pdf
    • http://www.gorillawalker.com/spacesite-interventionsituating-installation-art.pdf
    • http://www.gorillawalker.com/interpersonal-communication-everyday-encounters-wadsworth-series-in-communication-studies.pdf
    • http://www.gorillawalker.com/tlingit-volume-three-of-the-medicine-wheel-saga.pdf
    • http://www.gorillawalker.com/headaches-47-ways-to-stop-the-pain-a-people-s.pdf
    • http://www.gorillawalker.com/the-handbook-of-five-element-practice-five-element-acupuncture.pdf
    • http://www.gorillawalker.com/wielder-apprentice-book-one-of-the-wielder-cycle-volume-1.pdf
    • http://www.gorillawalker.com/national-labor-relations-board-division-of-judges-bench-book-an.pdf
    • http://www.gorillawalker.com/essential-fashion-illustration-details-essential-fashion-illustrations.pdf
    • http://www.gorillawalker.com/body-language-for-management-in-a-week-a-teach-yourself.pdf
    • http://www.gorillawalker.com/fifty-barfs-card-deck.pdf
    • http://www.gorillawalker.com/rikhiapeeth-satsangs-part-2.pdf
    • http://www.gorillawalker.com/designed-landscape-forum-landscape-art-architecture-volume-1.pdf
    • http://www.gorillawalker.com/the-history-and-future-of-the-customary-law-in-kenya.pdf
    • http://www.gorillawalker.com/stolen-tomorrows-understanding-and-treating-women-s-childhood-sexual-abuse.pdf
    • http://www.gorillawalker.com/submitting-to-my-mistress-the-billionaire-submissive-femdom-erotica.pdf
    • http://www.gorillawalker.com/atlas-de-histologia-descritiva-em-portuguese-do-brasil.pdf
    • http://www.gorillawalker.com/loose-leaf-version-for-environmental-geology.pdf
    • http://www.gorillawalker.com/the-undermining-of-austria-hungary.pdf
    • http://www.gorillawalker.com/an-introduction-to-geotextiles-in-soil-wall-reinforcement.pdf
    • http://www.gorillawalker.com/tactics-securing-the-victory-in-every-young-man-s-battle.pdf
    • http://www.gorillawalker.com/bankruptcy-code-and-related-materials-for-law-students-2009-2010.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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