Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2525e69d6150fa6…

MALICIOUS

PDF

34.0 KB Created: 2019-12-13 17:11:32 +03:00 Authoring application: Adobe InDesign CS5 (7.0.4) (via Adobe PDF Library 9.9)
MD5: 93bfc32c96bbde0aa9f117989fe5d174 SHA-1: 6d3c3706b115adcf276db50ec75d7bc29dadad4e SHA-256: b2525e69d6150fa6f9cc3ffb0f275c758561cab0e6892941668421aa807445e3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a large number of embedded URLs pointing 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. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/statistical-methods-in-education-and-psychology-3rd-edition.pdf
    • http://www.gorillawalker.com/essential-bulgaria-aa-essential.pdf
    • http://www.gorillawalker.com/colloquial-spanish-colloquial-series-cd.pdf
    • http://www.gorillawalker.com/roentgen-signs-in-diagnostic-imaging-spine-and-central-nervous-system.pdf
    • http://www.gorillawalker.com/john-christian-bach-mozart-s-friend-and-mentor.pdf
    • http://www.gorillawalker.com/dostoevsky-the-years-of-ordeal-1850-59.pdf
    • http://www.gorillawalker.com/st-thomas-aquinas-on-politics-and-ethics-norton-critical-editions.pdf
    • http://www.gorillawalker.com/the-damned-and-the-elect-guilt-in-western-culture.pdf
    • http://www.gorillawalker.com/mechanisms-of-photophysical-processes-and-photochemical-reactions-in-polymers-theory.pdf
    • http://www.gorillawalker.com/tractor-machines-at-work.pdf
    • http://www.gorillawalker.com/the-witchfinder-s-assistant-kindle-edition.pdf
    • http://www.gorillawalker.com/cuentos-de-poe-tales-1854-cuentos-mitos-y-libro-stories.pdf
    • http://www.gorillawalker.com/lair.pdf
    • http://www.gorillawalker.com/federal-law-enforcement-careers-profiles-of-250-high-powered-positions.pdf
    • http://www.gorillawalker.com/readings-in-christian-ethics-issues-and-applications.pdf
    • http://www.gorillawalker.com/strategy-for-intensifying-wind-energy-deployment.pdf
    • http://www.gorillawalker.com/the-silver-gryphon.pdf
    • http://www.gorillawalker.com/art-by-women-in-florence-a-guide-through-five-hundred.pdf
    • http://www.gorillawalker.com/k-letter-locker-letters-aa-zz-the-clear-and-simple.pdf
    • http://www.gorillawalker.com/analysis-now-graduate-texts-in-mathematics.pdf
    • http://www.gorillawalker.com/bloody-monday-11-paperback.pdf
    • http://www.gorillawalker.com/don-cherry-s-hockey-stories-part-2.pdf
    • http://www.gorillawalker.com/curriculum-theorizing-and-teacher-education-complicating-conjunctions-theorizing-education.pdf
    • http://www.gorillawalker.com/clairvoyeur-sexy-historical-romance.pdf
    • http://www.gorillawalker.com/inverse-sturm-liouville-problems-and-their-applications.pdf
    • http://www.gorillawalker.com/a-garden-for-all-seasons-2008-calendar.pdf
    • http://www.gorillawalker.com/die-smad-eine-forschungsbilanz-zeitgeschichte-im-gesprach-german-edition.pdf
    • http://www.gorillawalker.com/strapdown-inertial-navigation-technology-iee-radar-sonar-navigation-and-avionics.pdf
    • http://www.gorillawalker.com/chapter-29-revisited-the-amazing-true-story-of-what-happens.pdf
    • http://www.gorillawalker.com/premier-piano-course-pop-and-movie-hits-bk-1a-alfred.pdf
    • http://www.gorillawalker.com/como-sobreponerse-al-lado-oscuro-del-liderazgo-spanish-edition.pdf
    • http://www.gorillawalker.com/proton-therapy-and-radiosurgery.pdf
    • http://www.gorillawalker.com/a-comparative-study-of-the-constitution-apostolicae-sedis-and-the.pdf
    • http://www.gorillawalker.com/amerikanismus-in-weimar-sportsymbole-und-politische-kultur-1918-1933-german.pdf
    • http://www.gorillawalker.com/magic-rings-and-other-magical-things-fantasy-and-folklore-set.pdf
    • http://www.gorillawalker.com/wipe-clean-activity-fun-farm.pdf
    • http://www.gorillawalker.com/russian-ballet-on-tour.pdf
    • http://www.gorillawalker.com/le-corbusier-s-secret-laboratory-from-painting-to-architecture.pdf
    • http://www.gorillawalker.com/the-bride-wore-red-boots-a-seven-brides-for-seven.pdf
    • http://www.gorillawalker.com/a-generalized-engineering-design-procedure-a-thesis-in-aerospace-engineering.pdf
    • http://www.gorillawalker.com/cuentos-de-p
    • 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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