Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d1960fb1781bf2d…

MALICIOUS

PDF

30.2 KB Created: 2020-01-17 19:20:56 +03:00 Authoring application: Adobe InDesign CC 2014 (Windows) (via Adobe PDF Library 11.0)
MD5: 6ecbbd805648a42b0da71dc85555be00 SHA-1: 9aab2b10bfc0bc02d2ae9c3917830b169b709ea6 SHA-256: 4d1960fb1781bf2d3d423d4eabe3ca62f84d59c423a3b0a8ef04772c396af95c
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links 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. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8409

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/god-and-marriage.pdf
    • http://www.gorillawalker.com/the-pill-book-guide-to-natural-medicines-vitamins-minerals-nutritional.pdf
    • http://www.gorillawalker.com/the-law-relating-to-international-banking.pdf
    • http://www.gorillawalker.com/3d-printing-complete-certification-kit-core-series-for-it.pdf
    • http://www.gorillawalker.com/love-sonnets-of-shakespeare-miniature-edition-miniature-editions.pdf
    • http://www.gorillawalker.com/joseph-son-of-jacob.pdf
    • http://www.gorillawalker.com/how-to-draw-and-paint-the-fundamentals-of-oil-painting.pdf
    • http://www.gorillawalker.com/koordinationsverbindungen-coordination-compounds-4-gmelin-handbook-of-inorganic-and-organometallic.pdf
    • http://www.gorillawalker.com/willem-de-kooning-the-life-of-an-artist-artist-biographies.pdf
    • http://www.gorillawalker.com/my-first-plane-trip-flying-for-kids-book-children-s.pdf
    • http://www.gorillawalker.com/stars-upstream-life-along-an-ozark-river-hardcover.pdf
    • http://www.gorillawalker.com/no-laughing-matter-the-life-and-times-of-flann-o.pdf
    • http://www.gorillawalker.com/fun-stories-with-baby-animals-kindle-edition.pdf
    • http://www.gorillawalker.com/chopin-etude-op-10-no-2-instantly-download-and-print.pdf
    • http://www.gorillawalker.com/the-catskill-mountain-house-2nd-printing.pdf
    • http://www.gorillawalker.com/more-chess-openings-traps-and-zaps-2-fireside-chess-library.pdf
    • http://www.gorillawalker.com/the-80x86-ibm-pc-compatible-computers-assembly-language-design-and.pdf
    • http://www.gorillawalker.com/the-pearl-volumes-1-3-kindle-edition.pdf
    • http://www.gorillawalker.com/good-in-bed.pdf
    • http://www.gorillawalker.com/morgan-three-wheeler-the-complete-story.pdf
    • http://www.gorillawalker.com/dublin-street-map-city-street-maps-english-and-german-edition.pdf
    • http://www.gorillawalker.com/now-hear-this-ships-of-the-u-s-navy-in.pdf
    • http://www.gorillawalker.com/la-cocina-libanesa-de-ayer-y-de-hoy-the-lebanese.pdf
    • http://www.gorillawalker.com/thermodynamics-in-si-units-an-engineering-approach.pdf
    • http://www.gorillawalker.com/the-age-of-maggots.pdf
    • http://www.gorillawalker.com/el-triunfador-excepcional-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/michael-von-graffenried-bierfest.pdf
    • http://www.gorillawalker.com/graphing-calculator-explorations.pdf
    • http://www.gorillawalker.com/simple-paleo-salad-cookbook-50-quick-easy-gluten-free-salad.pdf
    • http://www.gorillawalker.com/the-probiotics-revolution.pdf
    • http://www.gorillawalker.com/fractals-you-can-draw-kindle-edition.pdf
    • http://www.gorillawalker.com/bound-by-the-viking-4-corrupted-kindle-edition.pdf
    • http://www.gorillawalker.com/political-violence-and-democracy-in-western-europe-1918-1940.pdf
    • http://www.gorillawalker.com/colorado-springs-co-city-wall-maps.pdf
    • http://www.gorillawalker.com/parker-s-wine-buying-guide-4th-edition.pdf
    • http://www.gorillawalker.com/hood-a-novel.pdf
    • http://www.gorillawalker.com/computers-in-the-medical-office-medisoft-v-17-student-at.pdf
    • http://www.gorillawalker.com/conception-des-circuits-vlsi-du-composant-au-syst-me-du.pdf
    • http://www.gorillawalker.com/genesis-god-s-word-for-a-jr-high-world-pulse.pdf
    • http://www.gorillawalker.com/the-wow-factor.pdf
    • http://www.gorillawalker.com/stars-upstream-life-along-an-ozark-
    • 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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