Malicious PDF — malware analysis report

Static analysis result for SHA-256 9179091aa45b0877…

MALICIOUS

PDF

43.1 KB Created: 2018-11-30 01:49:03 +03:00 Authoring application: FineReader (via -)
MD5: 12e546c9defc616fced28aba87069be3 SHA-1: f81765fb771ba13bf084c104821372ce649b6ab0 SHA-256: 9179091aa45b0877026bd59e9398b7caf8d33d8d557c3c066bede27f08ced8a9
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a significant number of embedded links to external PDF files hosted on 'www.gorillawalker.com'. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The embedded URLs suggest an attempt to lure users to download or interact with potentially harmful documents. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/rf-design-guide-systems-circuits-and-equations-artech-house-antennas.pdf
    • http://www.gorillawalker.com/computers-in-human-services.pdf
    • http://www.gorillawalker.com/the-complete-idiot-s-guide-to-being-a-sex-goddess.pdf
    • http://www.gorillawalker.com/how-to-drive-the-ultimate-guide-from-the-man-who.pdf
    • http://www.gorillawalker.com/the-autobiography-of-henry-merrell-industrial-missionary-to-the-south.pdf
    • http://www.gorillawalker.com/eminent-creativity-everyday-creativity-and-health-new-work-on-the.pdf
    • http://www.gorillawalker.com/veterinary-immunology-8e.pdf
    • http://www.gorillawalker.com/lost-cities-of-atlantis-ancient-europe-the-mediterranean-lost-cities.pdf
    • http://www.gorillawalker.com/love-never-dies-phantom-the-story-continues-pvg.pdf
    • http://www.gorillawalker.com/living-democracy-2014-elections-and-updates-edition-books-a-la.pdf
    • http://www.gorillawalker.com/introduction-to-the-lotus-sutra.pdf
    • http://www.gorillawalker.com/the-long-hard-road-our-of-hell.pdf
    • http://www.gorillawalker.com/camino-al-despertar-path-to-enlightenment-introduccion-al-camino-del.pdf
    • http://www.gorillawalker.com/night-masks-forgotten-realms-the-cleric-quintet-book-3.pdf
    • http://www.gorillawalker.com/kimberly-the-koala-fairy-a-rainbow-magic-book-the-baby.pdf
    • http://www.gorillawalker.com/born-to-shop-modern-woman-worship-her-like-the-goddess.pdf
    • http://www.gorillawalker.com/combined-and-uneven-development-towards-a-new-theory-of-world.pdf
    • http://www.gorillawalker.com/fidel-y-ra.pdf
    • http://www.gorillawalker.com/a-new-a-z-of-international-relations-theory-library-of.pdf
    • http://www.gorillawalker.com/plain-simple-a-woman-s-journey-to-the-amish.pdf
    • http://www.gorillawalker.com/the-art-of-sensual-massage-techniques-to-awaken-the-senses.pdf
    • http://www.gorillawalker.com/imperium-polish-edition.pdf
    • http://www.gorillawalker.com/a-world-beyond.pdf
    • http://www.gorillawalker.com/the-gingerbread-man-easy-to-read-folktales.pdf
    • http://www.gorillawalker.com/the-sound-of-music-intermediate-piano-duets.pdf
    • http://www.gorillawalker.com/joyous-farmer-huntsman-s-song-piano-solo-sheet-music.pdf
    • http://www.gorillawalker.com/in-calls-only-prequel-to-tokyo-black.pdf
    • http://www.gorillawalker.com/weiss-ratings-guide-to-property-and-casualty-insurers-winter-2011.pdf
    • http://www.gorillawalker.com/what-s-the-time-mr-wolf.pdf
    • http://www.gorillawalker.com/millicent-min-girl-genius-kindle-edition.pdf
    • http://www.gorillawalker.com/1991-symposium-on-vlsi-circuits-digest-of-technical-papers.pdf
    • http://www.gorillawalker.com/culture-shock-indonesia-culture-shock.pdf
    • http://www.gorillawalker.com/the-heart-of-devin-mackade-the-mackade-brothers.pdf
    • http://www.gorillawalker.com/elementos-para-uma-compreens-o-diagn-stica-em-psicoterapia-portuguese.pdf
    • http://www.gorillawalker.com/the-microlight-pilot-s-handbook.pdf
    • http://www.gorillawalker.com/spanish-slanguage-a-fun-visual-guide-to-spanish-terms-and.pdf
    • http://www.gorillawalker.com/shortcuts-130-almost-from-scratch-recipes-weight-watchers.pdf
    • http://www.gorillawalker.com/cook-s-collage.pdf
    • http://www.gorillawalker.com/the-little-black-book-of-gastroenterology-jones-and-bartlett-s.pdf
    • http://www.gorillawalker.com/asian-tigers-of-vocational-and-technical-education-research-chinese-edition.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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