Malicious PDF — malware analysis report

Static analysis result for SHA-256 43c3cb296b390ea1…

MALICIOUS

PDF

34.1 KB Created: 2020-02-19 11:21:22 +03:00 Authoring application: Adobe Illustrator CS2 (via Adobe PDF library 7.77)
MD5: 72e16aad058ca3aae4e457bc0652b484 SHA-1: c040e46871c46e894180892c0bbd6b3e6a5a57cc SHA-256: 43c3cb296b390ea1c97c1d64801bb5f98504ad276e62d2a9cc27cd28445e8eb8
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to external PDF documents, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or SEO poisoning attack, aiming to drive traffic to the linked content. No scripts were extracted, and the document body was unreadable, so the primary indicator is the mass of external links.

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/fender-g-dec-eric-clapton-play-along-with-smartcard-guitar.pdf
    • http://www.gorillawalker.com/the-great-irish-famine-new-studies-in-economic-and-social.pdf
    • http://www.gorillawalker.com/sex-seen-the-emergence-of-modern-sexuality-in-america.pdf
    • http://www.gorillawalker.com/a-visual-analogy-guide-to-chemistry.pdf
    • http://www.gorillawalker.com/saffron-sky-a-life-between-iran-and-america.pdf
    • http://www.gorillawalker.com/environmental-crime-a-reader.pdf
    • http://www.gorillawalker.com/oxford-phonics-world-2-student-book-with-multirom.pdf
    • http://www.gorillawalker.com/clamp-in-context-a-critical-study-of-the-manga-and.pdf
    • http://www.gorillawalker.com/cricket-and-empire-rle-sports-studies-the-1932-33-bodyline.pdf
    • http://www.gorillawalker.com/glittering-images-a-journey-through-art-from-egypt-to-star.pdf
    • http://www.gorillawalker.com/the-art-of-fullmetal-alchemist.pdf
    • http://www.gorillawalker.com/l-homme-unidimensionnel-essai-sur-l-id-ologie-de-la.pdf
    • http://www.gorillawalker.com/les-iles-du-capricorne.pdf
    • http://www.gorillawalker.com/mosby-s-dental-drug-reference-mosby-s-dental-drug-consult.pdf
    • http://www.gorillawalker.com/handbook-of-ecological-parameters-and-ecotoxicology.pdf
    • http://www.gorillawalker.com/field-guide-to-the-birds-of-colombia-1st-edition.pdf
    • http://www.gorillawalker.com/derecho-informatico-serie-juridica-spanish-edition.pdf
    • http://www.gorillawalker.com/the-war-of-the-witches.pdf
    • http://www.gorillawalker.com/sport-and-race-key-texts-in-sports-studies.pdf
    • http://www.gorillawalker.com/a-workbook-for-intermediate-greek-grammar-exegesis-and-commentary-on.pdf
    • http://www.gorillawalker.com/chocolates-for-breakfast.pdf
    • http://www.gorillawalker.com/scarred-hearts.pdf
    • http://www.gorillawalker.com/public-policy-in-the-united-states-at-the-dawn-of.pdf
    • http://www.gorillawalker.com/a-cappella-songs-for-treble-chorus-sa-ssa-a-cappel.pdf
    • http://www.gorillawalker.com/identity-and-theatre-translation-in-hong-kong-new-frontiers-in.pdf
    • http://www.gorillawalker.com/theorizing-identities-and-social-action-identity-studies-in-the-social.pdf
    • http://www.gorillawalker.com/bell-s-cathedrals-the-cathedral-church-of-salisbury-a-description.pdf
    • http://www.gorillawalker.com/a-guide-for-using-the-watsons-go-to-birmingham-1963.pdf
    • http://www.gorillawalker.com/the-liturgical-organist-vol-5.pdf
    • http://www.gorillawalker.com/one-dark-and-dreadful-night.pdf
    • http://www.gorillawalker.com/a-history-of-the-peace-conference-of-paris-6-volumes.pdf
    • http://www.gorillawalker.com/the-new-cowboy-harlequin-american-romance-hitting-rocks-cowboys.pdf
    • http://www.gorillawalker.com/bayou-folk.pdf
    • http://www.gorillawalker.com/the-flying-j-story-from-cut-rate-stations-to-the.pdf
    • http://www.gorillawalker.com/the-korean-war-a-first-book.pdf
    • http://www.gorillawalker.com/eating-disorders-and-obesity-an-issue-of-child-and-adolescent.pdf
    • http://www.gorillawalker.com/javaweb-collection-development-technology-program-with-cd.pdf
    • http://www.gorillawalker.com/advanced-technique-for-bands-alto-saxophone.pdf
    • http://www.gorillawalker.com/the-japanese-spa-a-guide-to-japan-s-finest-ryokan.pdf
    • http://www.gorillawalker.com/house-of-blues-blues-guitar-course-expanded-edition.pdf
    • http://www.gorillawalker.com/mosb
    • 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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