Malicious PDF — malware analysis report

Static analysis result for SHA-256 39426fa8af57a628…

MALICIOUS

PDF

40.0 KB Created: 2018-11-15 19:34:41 +03:00 Authoring application: Writer (via OpenOffice.org 2.0)
MD5: a02a412388c597546fe651e04b427d0e SHA-1: 47b44057ba43504bc841a59ec6cbb41c04db388e SHA-256: 39426fa8af57a6280cab0d1aeb8a919c652bf8eef2a92d71616418c83bcf6073
90 Risk Score

Malware Insights

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

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, and the document body was not parsable.

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/performing-asian-america-race-and-ethnicity-on-the-contemporary-stage.pdf
    • http://www.gorillawalker.com/pablo-neruda-bloom-s-modern-critical-views.pdf
    • http://www.gorillawalker.com/borderline-case-international-tax-policy-corporate-research-and-development-and.pdf
    • http://www.gorillawalker.com/f-rst-bariatinsky-marsch-op-212-tuba-part-qty-4.pdf
    • http://www.gorillawalker.com/why-suicide.pdf
    • http://www.gorillawalker.com/building-skills-for-the-toefl-ibt-beginning-reading.pdf
    • http://www.gorillawalker.com/dental-assisting-a-comprehensive-approach.pdf
    • http://www.gorillawalker.com/studying-complex-surface-dynamical-systems-using-helium-3-spin-echo.pdf
    • http://www.gorillawalker.com/scritch-scratch-a-perfect-match.pdf
    • http://www.gorillawalker.com/best-of-british-festivals.pdf
    • http://www.gorillawalker.com/kukai-and-his-major-works-kukai-major-works.pdf
    • http://www.gorillawalker.com/schaum-s-outline-introduction-to-mathematical-economics-3rd-third-edition.pdf
    • http://www.gorillawalker.com/beatlemania-1963-1966-vol-1.pdf
    • http://www.gorillawalker.com/integrity-cd-the-courage-to-meet-the-demands-of-reali.pdf
    • http://www.gorillawalker.com/hidden.pdf
    • http://www.gorillawalker.com/railroad-vision-steam-era-images-from-the-trains-magazine-archives.pdf
    • http://www.gorillawalker.com/ragnar-s-guide-to-the-underground-economy.pdf
    • http://www.gorillawalker.com/swallowing-stones.pdf
    • http://www.gorillawalker.com/how-to-build-wooden-boats-with-16-small-boat-designs.pdf
    • http://www.gorillawalker.com/prison-life-insideout.pdf
    • http://www.gorillawalker.com/son-of-the-revolution.pdf
    • http://www.gorillawalker.com/patricia-von-pleasantsquirrel.pdf
    • http://www.gorillawalker.com/read-responsibly-an-unshelved-collection-v-5.pdf
    • http://www.gorillawalker.com/varney-the-vampyre-or-the-feast-of-blood-volume-2.pdf
    • http://www.gorillawalker.com/the-seahorse-seaside-bath-books.pdf
    • http://www.gorillawalker.com/my-story-time-parables.pdf
    • http://www.gorillawalker.com/wall-map-uganda-district-2.pdf
    • http://www.gorillawalker.com/scratch-romans-french-edition.pdf
    • http://www.gorillawalker.com/inspired-notes.pdf
    • http://www.gorillawalker.com/if-he-s-wicked-wherlocke-book-1.pdf
    • http://www.gorillawalker.com/fundamentals-of-geometrical-optics-pm245-press-monograph.pdf
    • http://www.gorillawalker.com/music-theory-for-producers.pdf
    • http://www.gorillawalker.com/warwolves-of-the-iron-cross-albion-and-zion-united-the.pdf
    • http://www.gorillawalker.com/the-30-day-natural-hormone-plan-look-and-feel-young.pdf
    • http://www.gorillawalker.com/bible-cover-medium-plum-jewel-collection.pdf
    • http://www.gorillawalker.com/opengl-programming-guide-the-official-guide-to-learning-opengl-version.pdf
    • http://www.gorillawalker.com/the-clinical-application-of-the-theory-of-psychoanalysis.pdf
    • http://www.gorillawalker.com/strangers-and-sojourners-jewish-identity-in-contemporary-francophone-fiction-francophone.pdf
    • http://www.gorillawalker.com/soil-liquefaction-a-critical-state-approach-second-edition.pdf
    • http://www.gorillawalker.com/using-environments-to-enable-occupational-performance.pdf
    • http://www.gorillawalker.com/building-skil
    • 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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