Malicious PDF — malware analysis report

Static analysis result for SHA-256 a28ed0db7a8941e9…

MALICIOUS

PDF

31.2 KB Created: 2020-04-09 02:00:27 +03:00 Authoring application: TeX (via MiKTeX pdfTeX-1.40.9)
MD5: 9a57dc37a69ef71d407a2b616d16c74b SHA-1: 76e2493196d8fd5227d7028779173863b6806e63 SHA-256: a28ed0db7a8941e94749de97ba5bdb36bf770e73f13a92ee9b0be8c0da4d1f67
90 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and contains a large number of external links, indicating a potential link farm or distribution mechanism. The heuristic 'PDF_SEO_LINK_FARM' specifically calls out the mass external PDF link farm. While no scripts were extracted, the structure and embedded URLs suggest the document's primary purpose is to redirect users to external resources, potentially for SEO manipulation or to serve malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8447

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/spirits-of-the-season-saranormal.pdf
    • http://www.gorillawalker.com/a-sermon-series-2l-pastoral-anniversary-appreciation-sermon-outlines-for.pdf
    • http://www.gorillawalker.com/yvonne-goes-to-york-thorndike-press-large-print-paperback-series.pdf
    • http://www.gorillawalker.com/the-fishery-resources-of-the-philippine-islands-with-descriptions-of.pdf
    • http://www.gorillawalker.com/arabic-christian-poets-before-and-after-islam-christianity-in-the.pdf
    • http://www.gorillawalker.com/henry-bessemer-making-steel-from-iron-uncharted-unexplored-and-unexplained.pdf
    • http://www.gorillawalker.com/archives-principles-and-practices.pdf
    • http://www.gorillawalker.com/apec-2001-sixteenth-annual-ieee-applied-power-electronics-conference-and.pdf
    • http://www.gorillawalker.com/history-of-the-church.pdf
    • http://www.gorillawalker.com/the-road-less-travelled-a-new-psychology-of-love-traditional.pdf
    • http://www.gorillawalker.com/rocket-propulsion-elements.pdf
    • http://www.gorillawalker.com/stedmansmedical-dictionaryforthe-dental-professions2nd-second-edition-bystedman.pdf
    • http://www.gorillawalker.com/take-your-best-shot-tim-grey-tackles-your-digital-darkroom.pdf
    • http://www.gorillawalker.com/annual-report-on-exchange-arrangements-and-exchange-restrictions-2006.pdf
    • http://www.gorillawalker.com/bolivia-a-la-hora-del-che-spanish-edition.pdf
    • http://www.gorillawalker.com/alice-s-addiction-a-vore-story.pdf
    • http://www.gorillawalker.com/the-theatre-of-war.pdf
    • http://www.gorillawalker.com/adivinanzas-y-trabalenguas-riddles-and-tongue-twisters-spanish-edition.pdf
    • http://www.gorillawalker.com/the-lobster-kids-guide-to-exploring-boston.pdf
    • http://www.gorillawalker.com/great-american-barns-2002.pdf
    • http://www.gorillawalker.com/researching-constitutional-law.pdf
    • http://www.gorillawalker.com/quezon-city-philippines-guide-to-the-international-city.pdf
    • http://www.gorillawalker.com/developing-person-through-childhood-adolescnce-loose-leaf-with-dsm5-update.pdf
    • http://www.gorillawalker.com/shaker-cities-of-peace-love-and-union-a-history-of.pdf
    • http://www.gorillawalker.com/catalogue-of-veterinary-and-medical-library.pdf
    • http://www.gorillawalker.com/mi-vida-en-al-qaeda-spanish-edition.pdf
    • http://www.gorillawalker.com/juego-de-tronos-canci-n-de-hielo-y-fuego-1.pdf
    • http://www.gorillawalker.com/bent-over-by-the-motorcycle-club-bareback-mc-biker-gang.pdf
    • http://www.gorillawalker.com/inhaled-steroids-in-asthma-optimizing-effects-in-the-airways-lung.pdf
    • http://www.gorillawalker.com/storyteller.pdf
    • http://www.gorillawalker.com/tempting-fate.pdf
    • http://www.gorillawalker.com/coding-theory-and-applications-4th-international-castle-meeting-palmela-castle.pdf
    • http://www.gorillawalker.com/economics-in-action-14-greatest-hits-for-teaching-high-school.pdf
    • http://www.gorillawalker.com/saint-bride-and-her-book-library-of-medieval-women.pdf
    • http://www.gorillawalker.com/the-haunted-hillerman-house-an-american-epic-kindle-edition.pdf
    • http://www.gorillawalker.com/solar-system-xtreme-space.pdf
    • http://www.gorillawalker.com/management-information-systems-with-online-student-content-printed-access-card.pdf
    • http://www.gorillawalker.com/air-and-flight-science-factory.pdf
    • http://www.gorillawalker.com/beliefs-rituals-and-symbols-of-ancient-egypt-mesopotamia-and-the.pdf
    • http://www.gorillawalker.com/mama-rex-t-halloween-knight.pdf
    • http://www.gorillawalker.com/annual-report-on-ex
    • 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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