Malicious PDF — malware analysis report

Static analysis result for SHA-256 65c70061dfc20297…

MALICIOUS

PDF

43.0 KB Created: 2018-11-14 08:20:54 +03:00 Authoring application: DocBook XSL Stylesheets with Apache FOP (via Apache FOP Version 1.1)
MD5: 97ec3d61f839ffd443a21ce67f44b0b2 SHA-1: 8d66c3f4df72a93f0d4850bdd58678e7899a0ac2 SHA-256: 65c70061dfc202970502ca4e04687d2e02b31f43cc8463a2480fcc3b41118c08
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the 'PDF_SEO_LINK_FARM' heuristic. While no scripts were explicitly extracted, the presence of numerous links suggests an attempt to manipulate search engine rankings or distribute potentially malicious PDF files. The ML classifier also flagged the document as malicious. The primary attack pattern observed is the creation of a link farm within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8698

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/for-whom-the-bell-tolls-hudson-river-edition-series.pdf
    • http://www.gorillawalker.com/the-fundamentals-of-risk-measurement.pdf
    • http://www.gorillawalker.com/timothy-turtle.pdf
    • http://www.gorillawalker.com/guide-to-protein-purification-volume-182-volume-182-guide-to.pdf
    • http://www.gorillawalker.com/2513.pdf
    • http://www.gorillawalker.com/good-white-people-the-problem-with-middle-class-white-anti.pdf
    • http://www.gorillawalker.com/crock-pot-recipes-crock-pot-recipes-for-supreme-healthy-eating.pdf
    • http://www.gorillawalker.com/year-4-handwriting.pdf
    • http://www.gorillawalker.com/budapesti-bringas-terkep-radfahrerkarte-map-for-bikers-hungarian-edition.pdf
    • http://www.gorillawalker.com/mexico-146-s-gulf-states-campeche-quintana-roo-tabasco-veracruz.pdf
    • http://www.gorillawalker.com/chemical-analysis-of-inorganic-constituents-of-water-crc-series-in.pdf
    • http://www.gorillawalker.com/meditation-practicing-presence-in-every-moment-of-your-life.pdf
    • http://www.gorillawalker.com/sepharad-the-music-of-the-jews-from-spain-dvd-jewish.pdf
    • http://www.gorillawalker.com/dolphins-of-the-world.pdf
    • http://www.gorillawalker.com/united-states-army-u-s-armed-forces.pdf
    • http://www.gorillawalker.com/introduction-to-vlsi-systems.pdf
    • http://www.gorillawalker.com/wifredo-lam-monograph-and-catalogue-raisonne-vol-i-1923-1960.pdf
    • http://www.gorillawalker.com/warhammer-fantasy-battle-rulebook-2010-2010.pdf
    • http://www.gorillawalker.com/the-future-of-the-global-church-history-trends-and-possiblities.pdf
    • http://www.gorillawalker.com/symbols-of-democracy.pdf
    • http://www.gorillawalker.com/invisible-chess-moves-discover-your-blind-spots-and-stop-overlooking.pdf
    • http://www.gorillawalker.com/ghosts-of-flight-401-unsolved-mysteries-raintree-hardcover.pdf
    • http://www.gorillawalker.com/bob-dylan-harmonica.pdf
    • http://www.gorillawalker.com/whiter-than-snow-meditations-on-sin-and-mercy-kindle-edition.pdf
    • http://www.gorillawalker.com/the-5-minute-veterinary-consult-canine-and-feline-pda-5.pdf
    • http://www.gorillawalker.com/when-the-tide-turned-the-mysterious-marsh-series-volume-2.pdf
    • http://www.gorillawalker.com/integrationspadagogik-und-inklusion-lehren-und-lernen-german-edition.pdf
    • http://www.gorillawalker.com/doing-qualitative-research-a-comprehensive-guide.pdf
    • http://www.gorillawalker.com/malice-2-havoc.pdf
    • http://www.gorillawalker.com/gender-actualized-cases-in-communicatively-constructing-realities.pdf
    • http://www.gorillawalker.com/medical-instrument-design-and-development-from-requirements-to-market-placements.pdf
    • http://www.gorillawalker.com/sam-colby-the-return-book-2.pdf
    • http://www.gorillawalker.com/cats-and-their-slaves-an-anthology-of-worship.pdf
    • http://www.gorillawalker.com/the-handbook-of-transformative-learning-theory-research-and-practice.pdf
    • http://www.gorillawalker.com/mini-motocross-and-pit-bike-performance-handbook-motorbooks-workshop.pdf
    • http://www.gorillawalker.com/frigid.pdf
    • http://www.gorillawalker.com/autumn-of-the-spring-chicken-wit-and-wisdom-for-women.pdf
    • http://www.gorillawalker.com/dramatic-monologue-the-new-critical-idiom.pdf
    • http://www.gorillawalker.com/pourquoi-lire-les-classiques.pdf
    • http://www.gorillawalker.com/making-it-in-high-heels-3-innovators-and-trailblazers-unabridged.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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