Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b24f669615a2ace…

MALICIOUS

PDF

41.4 KB Created: 2019-03-17 11:33:12 +03:00 Authoring application: AH XSL Formatter V6.2 MR5 for Windows (x64) : 6.2.7.18952 (via Antenna House PDF Output Library 6.2.625 (Windows (x64)))
MD5: 13f5846332535d71bd0be85439ed897b SHA-1: 685cfdca5874116d7d5681e91092419a09340317 SHA-256: 2b24f669615a2ace390951b13961d853d5a4e170dfb0aa39bb5c5ea288d7abd4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious with a high probability. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/shoe-contemporary-footwear-by-inspiring-designers.pdf
    • http://www.gorillawalker.com/trabajamos-en-la-escuela-we-work-at-school-primary-source.pdf
    • http://www.gorillawalker.com/murder-most-fair-the-appeal-of-mystery-fiction.pdf
    • http://www.gorillawalker.com/surgical-management-of-urolithiasis-percutaneous-shockwave-and-ureteroscopy.pdf
    • http://www.gorillawalker.com/will-russia-become-a-muslim-society-english-and-english-edition.pdf
    • http://www.gorillawalker.com/the-history-of-childhood-master-work.pdf
    • http://www.gorillawalker.com/title-40-environment-150-189-2010-title-40-environment.pdf
    • http://www.gorillawalker.com/metrowest-ma-pocket-map.pdf
    • http://www.gorillawalker.com/world-atlas-of-the-past-the-age-of-discovery-volume.pdf
    • http://www.gorillawalker.com/analytic-and-algebraic-geometry-ias-park-city-mathematics-series.pdf
    • http://www.gorillawalker.com/bach-j-s-brandenburg-concerto-no6-in-b-flat-bwv.pdf
    • http://www.gorillawalker.com/lawdy-miss-clawdy-the-true-king-of-the-50-s.pdf
    • http://www.gorillawalker.com/wer-kann-sich-studieren-noch-leisten-die-wende-in-der.pdf
    • http://www.gorillawalker.com/annual-report-sudoc-nas-1-15.pdf
    • http://www.gorillawalker.com/yellow-green-beret-volume-ii-stories-of-an-asian-american.pdf
    • http://www.gorillawalker.com/moranthology.pdf
    • http://www.gorillawalker.com/readings-in-deviant-behavior-classic-and-contemporary.pdf
    • http://www.gorillawalker.com/secondary-science-dictionary-leckie.pdf
    • http://www.gorillawalker.com/the-drug-effect-health-crime-and-society.pdf
    • http://www.gorillawalker.com/photography-a-cultural-history-2nd-edition.pdf
    • http://www.gorillawalker.com/the-approaching-crisis-being-a-review-of-dr-bushnell-s.pdf
    • http://www.gorillawalker.com/hijab-ez-friends.pdf
    • http://www.gorillawalker.com/guide-to-the-design-selection-and-application-of-screw-feeders.pdf
    • http://www.gorillawalker.com/gatley-on-libel-and-slander-with-1st-supplement.pdf
    • http://www.gorillawalker.com/bamahuta-leaving-papua.pdf
    • http://www.gorillawalker.com/fudoki.pdf
    • http://www.gorillawalker.com/critical-care-ultrasound-manual-1e.pdf
    • http://www.gorillawalker.com/love-circles-yaoi.pdf
    • http://www.gorillawalker.com/asnago-vender-and-the-construction-of-modern-milan-limits-of.pdf
    • http://www.gorillawalker.com/the-landscape-architecture-of-richard-haag-from-modern-space-to.pdf
    • http://www.gorillawalker.com/how-to-survive-anywhere-a-guide-for-urban-suburban-rural.pdf
    • http://www.gorillawalker.com/the-very-busy-life-of-olaf-and-venus-car.pdf
    • http://www.gorillawalker.com/antiqvarisk-tidskrift-f-r-sverige-volume-12-swedish-edition.pdf
    • http://www.gorillawalker.com/shrimp-the-endless-quest-for-pink-gold.pdf
    • http://www.gorillawalker.com/sermon-outlines-on-practical-christian-living-wood-sermon-outline-series.pdf
    • http://www.gorillawalker.com/advertising-management-with-cd.pdf
    • http://www.gorillawalker.com/the-promise-and-pitfalls-of-offshore-drilling-should-mugabe-be.pdf
    • http://www.gorillawalker.com/knowledge-management-an-introduction.pdf
    • http://www.gorillawalker.com/understanding-your-offshore-injury-insider-tips-from-a-jones-act.pdf
    • http://www.gorillawalker.com/drugs-and-the-media-drug-abuse-prevention-library.pdf
    • http://www.gorillawalker
    • 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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