Malicious PDF — malware analysis report

Static analysis result for SHA-256 3aaf39042d2b67d9…

MALICIOUS

PDF

43.7 KB Created: 2019-01-06 08:02:50 +03:00 Authoring application: TeX (via dvipdfmx)
MD5: 032c6e8e0618348a0f08b05414f8346f SHA-1: e0e5d432366ba8870b7937a05bc8655ef7fb1ff4 SHA-256: 3aaf39042d2b67d94a13f1d3267bcc7aa9808da6374e30d80dda50fccd27c113
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 to external PDF files hosted on the same domain, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or to distribute further malicious content. No scripts were extracted, and the document body was unreadable, limiting the analysis to the link structure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/protein-engineering.pdf
    • http://www.gorillawalker.com/jeremiah-lamentations-understanding-the-bible-commentary-series.pdf
    • http://www.gorillawalker.com/selected-stories.pdf
    • http://www.gorillawalker.com/persuasion-the-art-of-getting-what-you-want.pdf
    • http://www.gorillawalker.com/bolero-piano-solo.pdf
    • http://www.gorillawalker.com/automotive-electricity-and-electronics.pdf
    • http://www.gorillawalker.com/mr-pusskins-and-little-whiskers-another-love-story.pdf
    • http://www.gorillawalker.com/shadow-children-boxed-set-among-the-hidden-among-the-impostors.pdf
    • http://www.gorillawalker.com/concurrent-engineering-fundamentals-integrated-products-and-proc-org.pdf
    • http://www.gorillawalker.com/city-guilds-level-1-2-food-beverage-service-candidate-handbook.pdf
    • http://www.gorillawalker.com/history-as-therapy-alternative-history-and-nationalist-imaginings-in-russia.pdf
    • http://www.gorillawalker.com/pursuing-the-text-jsot-supplement.pdf
    • http://www.gorillawalker.com/the-heroic-lives-of-al-capsella-uqp-young-adult-fiction.pdf
    • http://www.gorillawalker.com/introduction-to-geographic-information-systems-with-data-set-cd-rom.pdf
    • http://www.gorillawalker.com/gooseberry-patch-cookbook-memory-album-leisure-arts-3371.pdf
    • http://www.gorillawalker.com/arnold-o-beckman-one-hundred-years-of-excellence-chemical-heritage.pdf
    • http://www.gorillawalker.com/cool-african-cooking-fun-and-tasty-recipes-for-kids-cool.pdf
    • http://www.gorillawalker.com/101-plus-size-women-s-clothing-tips-lifetips-books-paperback.pdf
    • http://www.gorillawalker.com/of-beards-and-men-the-revealing-history-of-facial-hair.pdf
    • http://www.gorillawalker.com/aerodynamic-characteristics-in-pitch-of-several-ring-wing-body-configurations.pdf
    • http://www.gorillawalker.com/marche-h-ro-que-in-e-flat-major-op-34.pdf
    • http://www.gorillawalker.com/for-home-and-country-a-civil-war-scrapbook-young-reader.pdf
    • http://www.gorillawalker.com/past-continuous-tusk-ivories.pdf
    • http://www.gorillawalker.com/the-economics-of-discrimination-economic-research-studies.pdf
    • http://www.gorillawalker.com/quantum-chemistry-workbook-basic-concepts-and-procedures-in-the-theory.pdf
    • http://www.gorillawalker.com/starbase-human-a-retrieval-artist-universe-novel-book-seven-of.pdf
    • http://www.gorillawalker.com/concerto-in-b-flat-for-bassoon-strings-and-basso-continuo.pdf
    • http://www.gorillawalker.com/don-juan-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/en-de-lach-keerde-terug-dutch-edition.pdf
    • http://www.gorillawalker.com/intentional-disciplemaking-cultivating-spiritual-maturity-in-the-local-church.pdf
    • http://www.gorillawalker.com/maximiliano-ruiz-snuevo-mundo-latin-american-street-art-hardcover-2011.pdf
    • http://www.gorillawalker.com/relational-justice-repairing-the-breach-revised-edition.pdf
    • http://www.gorillawalker.com/who-was-thomas-alva-edison-who-was-pb.pdf
    • http://www.gorillawalker.com/marine-art-and-antiques-jack-tar-a-sailor-s-life.pdf
    • http://www.gorillawalker.com/tango-in-madeira-a-dance-of-life-love-and-death.pdf
    • http://www.gorillawalker.com/the-erotic-fairytales-bundle-3-erotic-retellings-of-classic-stories.pdf
    • http://www.gorillawalker.com/european-human-rights-reports-2008-bound-volume-volume-2-v.pdf
    • http://www.gorillawalker.com/forging-environmentalism-justice-livelihood-and-contested-environments.pdf
    • http://www.gorillawalker.com/rothman-s-snooker-year-book-1985-86.pdf
    • http://www.gorillawalker.com/the-provident-prepper-a-common-sense-guide-to-preparing-for.pdf
    • http://www.gorillawalker.com/concurrent-engineering-fundam
    • 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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