Malicious PDF — malware analysis report

Static analysis result for SHA-256 f642c49f1fcbf524…

MALICIOUS

PDF

31.0 KB Created: 2020-01-17 19:19:42 +03:00 Authoring application: Adobe InDesign CC (Macintosh) (via Adobe PDF Library 10.0.1)
MD5: f022825a70931dfc18c29aa4ac98e56f SHA-1: e4dd31025317a6375f2ecbbf22d5c5f4e49f3cbf SHA-256: f642c49f1fcbf52474ac7aa260610edb21f9f6a92bc2a86f112ffde934ca51ec
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO manipulation or to distribute malicious content indirectly. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific intent beyond link distribution.

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/sound-and-fury-two-powerful-lives-one-fateful-friendship.pdf
    • http://www.gorillawalker.com/compsognathus-exploring-dinosaurs.pdf
    • http://www.gorillawalker.com/brando-unzipped-marlon-brando-bad-boy-megastar-sexual-outlaw.pdf
    • http://www.gorillawalker.com/how-your-house-works-a-visual-guide-to-understanding-maintaining.pdf
    • http://www.gorillawalker.com/kanban.pdf
    • http://www.gorillawalker.com/stone-soup-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/hardwood-floors-laying-sanding-and-finishing.pdf
    • http://www.gorillawalker.com/planning-for-community-resilience-a-handbook-for-reducing-vulnerability-to.pdf
    • http://www.gorillawalker.com/introduction-to-english-phonetics-and-phonology-textbooks-in-english-language.pdf
    • http://www.gorillawalker.com/twentieth-century-crime-fiction.pdf
    • http://www.gorillawalker.com/the-special-get-more-biz-godfather-principles-and-sales-models.pdf
    • http://www.gorillawalker.com/un-manual-para-padres-cristianos-50-estrategias-para-todas-las.pdf
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    • http://www.gorillawalker.com/the-trail-of-tears.pdf
    • http://www.gorillawalker.com/brainspotting-spanish-edition.pdf
    • http://www.gorillawalker.com/crimes-of-love.pdf
    • http://www.gorillawalker.com/my-beastly-brother.pdf
    • http://www.gorillawalker.com/social-trends-37th-edition.pdf
    • http://www.gorillawalker.com/returning-to-the-piano-a-refresher-book-for-adults.pdf
    • http://www.gorillawalker.com/new-parts-for-old-age-organ-transplant.pdf
    • http://www.gorillawalker.com/understanding-solvency-ii-what-is-different-after-april-2015.pdf
    • http://www.gorillawalker.com/piercing-midnight-the-infinity-chronicles.pdf
    • http://www.gorillawalker.com/stochastic-structural-dynamics-2-new-practical-applications-2nd-international-conference.pdf
    • http://www.gorillawalker.com/don-t-wait-dominate-how-to-release-the-floodgates-of.pdf
    • http://www.gorillawalker.com/sharks-zoobooks.pdf
    • http://www.gorillawalker.com/mountain-days-bothy-nights-walk-with-luath.pdf
    • http://www.gorillawalker.com/living-with-terror-working-with-trauma-a-clinician-s-handbook.pdf
    • http://www.gorillawalker.com/wine-for-dummies-for-dummies-lifestyles-paperback.pdf
    • http://www.gorillawalker.com/daniel-leader-s-kit-with-dvds-lives-of-integrity-words.pdf
    • http://www.gorillawalker.com/brasil-500-anos-outras-cronicas-pitorescas-da-historia-do-brasil.pdf
    • http://www.gorillawalker.com/the-asylum-true-tales-of-madness-from-a-life-in.pdf
    • http://www.gorillawalker.com/farm-animals-a-chunky-book-r-board-book.pdf
    • http://www.gorillawalker.com/the-beatles-complete-easy-guitar-edition.pdf
    • http://www.gorillawalker.com/wohlfahrt-franz-60-studies-op-45-complete-violin-edited-by.pdf
    • http://www.gorillawalker.com/christ-in-all-things-william-temple-and-his-writings-canterbury.pdf
    • http://www.gorillawalker.com/david-busch-s-sony-alpha-dslr-a580-a560-guide-to.pdf
    • http://www.gorillawalker.com/spontaneous-combustion-billionaire-cruise-book-1.pdf
    • http://www.gorillawalker.com/physician-assistants-guide-to-research-and-medical-literature-2nd-edition.pdf
    • http://www.gorillawalker.com/the-greatest-newspaper-dot-to-dot-puzzles-vol-7.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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