Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a6b04fb52d4aefc…

MALICIOUS

PDF

44.4 KB Created: 2019-02-13 02:00:26 +03:00 Authoring application: FrameMaker 12.0.4 (via Acrobat Distiller 11.0 (Windows))
MD5: 46164dfeb4d3d987bc926c3ecb9bc4a5 SHA-1: a3b192bbc5cd80b3ad8c34f91e07d6afaf32ef2a SHA-256: 5a6b04fb52d4aefc5a90dec2c5728315518f5103d10318e6b57b0b66d82f03b2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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. While no scripts were extracted, the sheer volume of links suggests a non-standard purpose beyond a typical document.

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/the-wrinklies-guide-to-keeping-supple.pdf
    • http://www.gorillawalker.com/real-resumes-for-u-s-postal-service-jobs-government-jobs.pdf
    • http://www.gorillawalker.com/from-baltimore-to-broadway-joe-the-jets-and-the-super.pdf
    • http://www.gorillawalker.com/slicing-pizzas-racing-turtles-and-further-adventures-in-applied-mathematics.pdf
    • http://www.gorillawalker.com/viewing-the-islamic-orient-british-travel-writers-of-the-nineteenth.pdf
    • http://www.gorillawalker.com/best-soccer-goalkeepers-of-all-time-easy-to-read-children.pdf
    • http://www.gorillawalker.com/embryology-and-development-of-the-frog.pdf
    • http://www.gorillawalker.com/make-him-beg-to-be-your-boyfriend-in-6-simple.pdf
    • http://www.gorillawalker.com/the-neuromuscular-system-from-earth-to-space-life-science-neuromuscular.pdf
    • http://www.gorillawalker.com/exam-review-for-milady-standard-cosmetology-2012-milady-standard-cosmetology.pdf
    • http://www.gorillawalker.com/the-dark-side-of-love-verses-of-intense-love.pdf
    • http://www.gorillawalker.com/the-bite-in-the-apple-a-memoir-of-my-life.pdf
    • http://www.gorillawalker.com/true-power-the-true-trilogy-book-3.pdf
    • http://www.gorillawalker.com/obedience-school-the-new-girl-kindle-edition.pdf
    • http://www.gorillawalker.com/mx-champions-the-stars-of-the-show-past-and-present.pdf
    • http://www.gorillawalker.com/the-lost-fleet-beyond-the-frontier-leviathan.pdf
    • http://www.gorillawalker.com/holt-american-government-student-edition-grades-9-12-2003.pdf
    • http://www.gorillawalker.com/digital-telephony-and-network-integration.pdf
    • http://www.gorillawalker.com/women-abuse-and-the-bible-how-scripture-can-be-used.pdf
    • http://www.gorillawalker.com/organizing-a-successful-group-cruise-group-travel-seminars.pdf
    • http://www.gorillawalker.com/101-questions-and-answers-on-eastern-catholic-churches-101-questions.pdf
    • http://www.gorillawalker.com/towards-professional-wisdom.pdf
    • http://www.gorillawalker.com/the-man-who-invented-christmas-how-charles-dickens-s-a.pdf
    • http://www.gorillawalker.com/wolf-tattoo-designs-kindle-edition.pdf
    • http://www.gorillawalker.com/new-drug-application-field-submission-chemistry-section-maroon-paper-folder.pdf
    • http://www.gorillawalker.com/thoracic-radiology-the-requisites-2e-requisites-in-radiology.pdf
    • http://www.gorillawalker.com/warp-labels-unlimited.pdf
    • http://www.gorillawalker.com/lord-edward-s-law-the-women-of-wintercrest-book-2.pdf
    • http://www.gorillawalker.com/faust-part-one-oxford-world-s-classics-book-1-kindle.pdf
    • http://www.gorillawalker.com/christian-science-hymnal-concordance-and-general-index.pdf
    • http://www.gorillawalker.com/newnes-radio-and-rf-engineering-pocket-book-third-edition-newnes.pdf
    • http://www.gorillawalker.com/the-italian-s-love-child-harlequin-comics.pdf
    • http://www.gorillawalker.com/diana-o-la-cazadora-solitaria-spanish-edition.pdf
    • http://www.gorillawalker.com/pembrokeshire-west-wales-cycling-country-lanes-byways.pdf
    • http://www.gorillawalker.com/ultimate-creation-handbook-the-unofficial-minecraft-cheatsheet-for-minecrafter-s.pdf
    • http://www.gorillawalker.com/the-future-equilibrium-book-3.pdf
    • http://www.gorillawalker.com/lower-ecclesiastical-jurisdiction-in-late-medieval-england-the-courts-of.pdf
    • http://www.gorillawalker.com/the-art-of-pasta.pdf
    • http://www.gorillawalker.com/this-imagined-permanence.pdf
    • http://www.gorillawalker.com/amor-selecci-n-de-citas-spanish-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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