Malicious PDF — malware analysis report

Static analysis result for SHA-256 11d2f24819bbc851…

MALICIOUS

PDF

40.8 KB Created: 2019-04-04 19:42:57 +03:00 Authoring application: Adobe Acrobat 8.0 (via Adobe Acrobat 8.0 Image Conversion Plug-in)
MD5: 047e952d601aff109cc527e6b4c24240 SHA-1: 9d0ed575222129a0f864c223b9e2dfcc8bbf6a8b SHA-256: 11d2f24819bbc851751fd3bbcec5e5c2a706f0d4a645803151d80304bd7b67f0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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, often 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 0.9027

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/academic-press-dictionary-of-science-and-technology.pdf
    • http://www.gorillawalker.com/selected-masterpieces-vol2-centennial-edition.pdf
    • http://www.gorillawalker.com/ljubljana-city-pocket-map-1-10k-slovenia-english-and-german.pdf
    • http://www.gorillawalker.com/textbook-of-clinical-leprosy.pdf
    • http://www.gorillawalker.com/milagros-bailarinas-ballerinas-spanish-edition.pdf
    • http://www.gorillawalker.com/classic-anthology-of-anatomical-charts-the-world-s-best-anatomical.pdf
    • http://www.gorillawalker.com/appliance-service-handbook.pdf
    • http://www.gorillawalker.com/dakota-hearts-boxed-set-1-5.pdf
    • http://www.gorillawalker.com/how-will-we-get-to-the-beach-como-iremos-a.pdf
    • http://www.gorillawalker.com/the-giant-cities-of-bashan.pdf
    • http://www.gorillawalker.com/cupid-a-romance-novel-kindle-edition.pdf
    • http://www.gorillawalker.com/the-physical-features-and-geology-of-the-route-of-the.pdf
    • http://www.gorillawalker.com/treasures-of-the-fourth-reich-a-novel-of-suspense.pdf
    • http://www.gorillawalker.com/qlikview-11-for-developers-kindle-edition.pdf
    • http://www.gorillawalker.com/rendering-and-sketching-with-markers-looking-at-glass-kindle-edition.pdf
    • http://www.gorillawalker.com/surviving-space-papers-on-infant-observation-the-tavistock-clinic-series.pdf
    • http://www.gorillawalker.com/taken-by-the-doorkeeper.pdf
    • http://www.gorillawalker.com/el-ahorro-saving-money-dinero-y-los-bancos-spanish-edition.pdf
    • http://www.gorillawalker.com/bookbinding-its-background-and-technique.pdf
    • http://www.gorillawalker.com/long-range-order-in-solids-solid-state-physics-supplement-15.pdf
    • http://www.gorillawalker.com/chester-the-brave-kissing-hand.pdf
    • http://www.gorillawalker.com/the-structural-condition-of-underdown-and-winget-houses.pdf
    • http://www.gorillawalker.com/clockworks.pdf
    • http://www.gorillawalker.com/the-battle-for-wau-new-guinea-s-frontline-1942-1943.pdf
    • http://www.gorillawalker.com/concise-medical-dictionary-oxford-paperback-reference.pdf
    • http://www.gorillawalker.com/stained-river-survival-in-the-amazon-rainforest.pdf
    • http://www.gorillawalker.com/famous-last-words-dying-never-sounded-so-good-the-last.pdf
    • http://www.gorillawalker.com/teen-health-course-1-tobacco-chapter-9-fast-files.pdf
    • http://www.gorillawalker.com/la-red-de-caronte-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/deep-borehole-disposal-of-radioactive-waste-and-spent-nuclear-fuel.pdf
    • http://www.gorillawalker.com/color-atlas-of-gonioscopy-2nd-ed.pdf
    • http://www.gorillawalker.com/seeking-refuge-central-american-migration-to-mexico-the-united-states.pdf
    • http://www.gorillawalker.com/the-doom-of-reconstruction-the-liberal-republicans-in-the-civil.pdf
    • http://www.gorillawalker.com/the-spider-animal-lives.pdf
    • http://www.gorillawalker.com/new-jersey-laws-and-regulations-consumer-credit-law-service.pdf
    • http://www.gorillawalker.com/aerodynamic-components-of-aircraft-at-high-speeds-high-speed-aerodynamics.pdf
    • http://www.gorillawalker.com/movie-heroes-for-students-bk-3-10-graded-selections-for.pdf
    • http://www.gorillawalker.com/coaching-for-commitment-coaching-skills-inventory-csi-observer.pdf
    • http://www.gorillawalker.com/seoexacto-curso-profesional-de-posicionamiento-web-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/1krv5.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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