Malicious PDF — malware analysis report

Static analysis result for SHA-256 0434682df7587a03…

MALICIOUS

PDF

43.7 KB Created: 2018-11-26 20:10:15 +03:00 Authoring application: Adobe InDesign CC 2015 (Windows) (via Adobe PDF Library 15.0)
MD5: 87851d386feddc60d3e13872519e6dce SHA-1: b8a2c6675222a0dfa777b1b18b2dbbca2fc3ca87 SHA-256: 0434682df7587a032cf9b9e576b64d39b3c59c1957a2927af5aa336b8cfebd4c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating a large number of external links, suggesting a link farm for SEO or to distribute malicious content. The ML classifier also flagged the PDF as malicious. While no scripts were extracted, the sheer volume of links to external PDFs from the domain 'gorillawalker.com' is highly suspicious and indicative of a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8575

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/save-my-soul.pdf
    • http://www.gorillawalker.com/beautiful-flowers-floral-designs-patterns-adult-square-coloring-book-sacred.pdf
    • http://www.gorillawalker.com/express-to-the-toefl-ibt-test-with-cd-rom.pdf
    • http://www.gorillawalker.com/7-chaves-para-1000-vezes-mais-portuguese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/quando-acontece-para-a-eternidade-volume-4-portuguese-edition.pdf
    • http://www.gorillawalker.com/streets-of-jerusalem.pdf
    • http://www.gorillawalker.com/decision-at-the-crossroads.pdf
    • http://www.gorillawalker.com/mad-mary-lamb-lunacy-and-murder-in-literary-london.pdf
    • http://www.gorillawalker.com/the-baby-name-bible-the-ultimate-guide-by-america-s.pdf
    • http://www.gorillawalker.com/adefovir-dipivoxil-in-chronic-hbv-once-daily-investigational-therapy-hepatitis.pdf
    • http://www.gorillawalker.com/chaucer-and-the-canterbury-tales-a-short-introduction.pdf
    • http://www.gorillawalker.com/theology-of-john-calvin.pdf
    • http://www.gorillawalker.com/women-s-bodies-women-s-health-perpetual-flip-calendar.pdf
    • http://www.gorillawalker.com/gibson-electrics-the-classic-years.pdf
    • http://www.gorillawalker.com/the-segregated-origins-of-social-security-african-americans-and-the.pdf
    • http://www.gorillawalker.com/oregon-community-association-guidebook.pdf
    • http://www.gorillawalker.com/coldplay-a-rush-of-blood-to-the-head-guitar-tab.pdf
    • http://www.gorillawalker.com/grammaire-progressive-du-francais-corriges-niveau-avance-french-edition.pdf
    • http://www.gorillawalker.com/breaking-points.pdf
    • http://www.gorillawalker.com/kingship-and-propaganda-royal-eloquence-and-the-crown-of-aragon.pdf
    • http://www.gorillawalker.com/rigby-english-in-my-pocket-student-reader-in-the-park.pdf
    • http://www.gorillawalker.com/think-paw-sitive-the-oreo-cat-volume-1.pdf
    • http://www.gorillawalker.com/pkg-fund-of-nsg-vol-1-2-3e-rn-skills.pdf
    • http://www.gorillawalker.com/trailer-life-s-10-year-towing-guide-2006-for-model.pdf
    • http://www.gorillawalker.com/software-testing-a-craftsman-s-approach-fourth-edition.pdf
    • http://www.gorillawalker.com/fotos-de-desnudos-de-mujeres-generosas-y-lascivos-2-sexo.pdf
    • http://www.gorillawalker.com/dramatist-s-sourcebook-1986.pdf
    • http://www.gorillawalker.com/the-greatest-kingdom-on-earth.pdf
    • http://www.gorillawalker.com/the-colonial-system-unveiled.pdf
    • http://www.gorillawalker.com/fundamental-concepts-and-skills-for-nursing-text-and-e-book.pdf
    • http://www.gorillawalker.com/favorite-recipes-campbell-s-microwave-cooking.pdf
    • http://www.gorillawalker.com/betriebliches-gesundheitsmanagement-bei-kultureller-vielfalt-ein-stressmanagement-programm-f-r.pdf
    • http://www.gorillawalker.com/understanding-sexual-attraction-what-makes-a-woman-want-you-unabridged.pdf
    • http://www.gorillawalker.com/european-environmental-law-after-lisbon-fourth-edition.pdf
    • http://www.gorillawalker.com/essential-animal-behavior-05-by-scott-graham-paperback-2004.pdf
    • http://www.gorillawalker.com/stories-from-torchy-3-golden-age-comics-blonde-bombshell.pdf
    • http://www.gorillawalker.com/stopping-drips-and-replacing-faucets-fix-it-maps.pdf
    • http://www.gorillawalker.com/the-moral-premise-harnessing-virtue-vice-for-box-office-success.pdf
    • http://www.gorillawalker.com/math-game-volume-2-math-game-graphic-novels.pdf
    • http://www.gorillawalker.com/nursery-reminder-postcards.pdf
    • 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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