Malicious PDF — malware analysis report

Static analysis result for SHA-256 a82a85e0cd3bb2b9…

MALICIOUS

PDF

42.9 KB Created: 2018-11-30 01:49:20 +03:00 Authoring application: - (via ProcessText Group)
MD5: 5cf2a4632670a7775f48ccc275760941 SHA-1: dd13f04585aa1169599080ffbb28e5f12deeced6 SHA-256: a82a85e0cd3bb2b96dd57f0db3e9729d9f3d2efdf353d779fad4d49a3798192d
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 to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The primary attack pattern appears to be a link farm, likely intended to manipulate search engine rankings or redirect users to malicious content hosted on the linked domains. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9362

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/worlds-of-music-an-introduction-to-music-of-the-world.pdf
    • http://www.gorillawalker.com/the-mosaic-polity-sources-in-early-modern-economics-ethics-and.pdf
    • http://www.gorillawalker.com/teasing-trent-the-alexanders-prequel-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/rhodes-map.pdf
    • http://www.gorillawalker.com/start-run-an-event-planning-business.pdf
    • http://www.gorillawalker.com/lender-liability-4th-edition.pdf
    • http://www.gorillawalker.com/daughter-s-keeper.pdf
    • http://www.gorillawalker.com/electrode-kinetics-for-chemists-chemical-engineers-and-material-scientists.pdf
    • http://www.gorillawalker.com/beauty-detox-diet-track-your-weight-loss-progress-with-bmi.pdf
    • http://www.gorillawalker.com/16-pintores-muy-muy-importantes-16-very-very-important-painters.pdf
    • http://www.gorillawalker.com/advanced-colonoscopy-principles-and-techniques-beyond-simple-polypectomy.pdf
    • http://www.gorillawalker.com/the-mysterious-ocean-highway-benjamin-franklin-and-the-gulf-stream.pdf
    • http://www.gorillawalker.com/the-works-of-henry-scougal-puritan-writings.pdf
    • http://www.gorillawalker.com/the-go-go-girl.pdf
    • http://www.gorillawalker.com/creative-strategy-in-direct-interactive-marketing-paperback-2005-3rd-edition.pdf
    • http://www.gorillawalker.com/poland-czech-republic-slovakia-travel-scout-24-map.pdf
    • http://www.gorillawalker.com/illustrated-guide-to-the-nec.pdf
    • http://www.gorillawalker.com/strangers-to-these-shores-race-and-ethnic-relations-in-the.pdf
    • http://www.gorillawalker.com/coconut-health-lose-weight-lower-cholesterol-improve-your-memory-hair.pdf
    • http://www.gorillawalker.com/olfaction-and-electronic-nose-proceedings-of-the-13th-international-symposium.pdf
    • http://www.gorillawalker.com/the-partnership-the-making-of-goldman-sachs.pdf
    • http://www.gorillawalker.com/line-color-form-the-language-of-art-and-design.pdf
    • http://www.gorillawalker.com/more-precious-than-gold-the-story-of-the-peruvian-guano.pdf
    • http://www.gorillawalker.com/threat-level-a-novel-of-the-war-on-terror.pdf
    • http://www.gorillawalker.com/the-catholic-worker-after-dorothy-practicing-the-works-of-mercy.pdf
    • http://www.gorillawalker.com/geschichte-des-zen-buddhismus-german-edition.pdf
    • http://www.gorillawalker.com/newport-and-its-cottages.pdf
    • http://www.gorillawalker.com/image-icon-economy-the-byzantine-origins-of-the-contemporary-imaginary.pdf
    • http://www.gorillawalker.com/krakatoa-history-s-loudest-volcano-volcanoes-of-the-world.pdf
    • http://www.gorillawalker.com/action-photography-the-digital-photographer-s-handbook.pdf
    • http://www.gorillawalker.com/in-the-ring-with-bret-hart-reading-power-world-of.pdf
    • http://www.gorillawalker.com/liquid-interfacial-systems-oscillations-and-instability-surfactant-science.pdf
    • http://www.gorillawalker.com/new-tune-a-day-for-cello-book-1-a-new.pdf
    • http://www.gorillawalker.com/rules-in-school-teaching-discipline-in-the-responsive-classroom.pdf
    • http://www.gorillawalker.com/joint-modeling-of-longitudinal-and-survival-data-with-r.pdf
    • http://www.gorillawalker.com/identity-and-modernity-in-latin-america.pdf
    • http://www.gorillawalker.com/or-consequence.pdf
    • http://www.gorillawalker.com/case-study-in-aircraft-design-the-boeing-727-case-studies.pdf
    • http://www.gorillawalker.com/obras-primas-da-m-sica-cl-ssica-para-a-flauta.pdf
    • http://www.gorillawalker.com/ultreia-zprava-o-putovani-z-prahy-az-na-konec-sveta.pdf
    • http://www.gorillawalker.com/beauty-detox-diet-track-your-weight-l
    • 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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