Malicious PDF — malware analysis report

Static analysis result for SHA-256 63b935d09abf17c6…

MALICIOUS

PDF

42.0 KB Created: 2018-12-15 08:52:30 +03:00 Authoring application: - (via Acrobat Distiller 7.0 (Windows))
MD5: 11e0b948c27378984053e33e8ee23705 SHA-1: 679f7aa5b85625bf9589dd44983c3973d2bbe308 SHA-256: 63b935d09abf17c62cf7a647a1c4d316299ad42d1a5616f58215fe0abe3ae030
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine rankings or redirect users to potentially malicious content hosted on these external sites.

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/the-agency-part-1-plus-flash-fiction-bonus.pdf
    • http://www.gorillawalker.com/literature-gender-and-nation-building-in-nineteenth-century-egypt-the.pdf
    • http://www.gorillawalker.com/die-gerettete-zunge-geschichte-einer-jug-fiction-poetry-drama-german.pdf
    • http://www.gorillawalker.com/gluten-free-baking-gluten-free-cake-recipes-gluten-free-cookbook.pdf
    • http://www.gorillawalker.com/introduction-to-nutrition-and-metabolism-fourth-edition.pdf
    • http://www.gorillawalker.com/s-o-s-turtleback-school-library-binding-edition-titanic.pdf
    • http://www.gorillawalker.com/ultimate-play-along-for-guitar-ultimate-play-along-series-with.pdf
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    • http://www.gorillawalker.com/mycophilia-revelations-from-the-weird-world-of-mushrooms-unabridged-audible.pdf
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    • http://www.gorillawalker.com/the-literary-origins-of-surrealism-a-new-mysticism-in-french.pdf
    • http://www.gorillawalker.com/athletics-throwing.pdf
    • http://www.gorillawalker.com/medicare-for-dummies-kindle-edition.pdf
    • http://www.gorillawalker.com/physics-for-the-ib-diploma-full-colour.pdf
    • http://www.gorillawalker.com/kissed-by-nemesis-kissed-by-an-immortal-book-2.pdf
    • http://www.gorillawalker.com/the-associated-press-guide-to-good-writing.pdf
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    • http://www.gorillawalker.com/stepbrother-untouchable-kindle-edition.pdf
    • http://www.gorillawalker.com/montaigne-and-the-art-of-free-thinking-the-past-in.pdf
    • http://www.gorillawalker.com/accent-on-achievement-trombone-book-3.pdf
    • http://www.gorillawalker.com/haunted-jersey-shore-ghosts-and-strange-phenomena-of-the-garden.pdf
    • http://www.gorillawalker.com/surfer-s-start-up-a-beginner-s-guide-to-surfing.pdf
    • http://www.gorillawalker.com/rome-s-fallen-eagle-vespasian.pdf
    • http://www.gorillawalker.com/rainbow-fish-the-dangerous-deep.pdf
    • http://www.gorillawalker.com/colour-identification-guide-to-moths-of-the-british-isles-macrolepidoptera.pdf
    • http://www.gorillawalker.com/sino-latin-american-economic-relations-routledge-contemporary-china-series.pdf
    • http://www.gorillawalker.com/a-cultural-study-of-mary-and-the-annunciation-from-luke.pdf
    • http://www.gorillawalker.com/catalogo-escencial-del-museo-nacional-de-antropologia-essential-catalogue-of.pdf
    • http://www.gorillawalker.com/solsticio-de-invierno-spanish-edition.pdf
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    • 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/