Malicious PDF — malware analysis report

Static analysis result for SHA-256 09bf78560a65733c…

MALICIOUS

PDF

39.1 KB Created: 2018-12-15 08:38:59 +03:00 Authoring application: Microsoft® Word 2010
MD5: d2e1956ef7ac31fcaaaa5c8276c4b5a3 SHA-1: 6fda065965f064536b74f0c7ca4d714ef75b00a5 SHA-256: 09bf78560a65733ce7f058a0a81ac76d41f4556748cc65b4e8db3bfcca54642f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This is indicative of a link farm or SEO manipulation tactic, which can be used to distribute malware or phish for information. The ML classifier also flagged this PDF as malicious. No scripts were extracted, but the embedded links are the primary IOCs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8505

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/boss-richard-j-daley-of-chicago.pdf
    • http://www.gorillawalker.com/may-sinclair-a-modern-victorian.pdf
    • http://www.gorillawalker.com/manufacturing-bookkeeping-text-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/acing-property-acing-series.pdf
    • http://www.gorillawalker.com/lexicon-syriacum-latin-edition.pdf
    • http://www.gorillawalker.com/guia-ab-de-la-teoria-musical-parte-1-pt-1.pdf
    • http://www.gorillawalker.com/sharklock-bones-bug-tails-sharklock-bones-fish-detective-book-4.pdf
    • http://www.gorillawalker.com/the-multiversity-deluxe-edition.pdf
    • http://www.gorillawalker.com/sumo-challenge.pdf
    • http://www.gorillawalker.com/oxford-practice-tests-for-the-toeic-test-2-cd-and.pdf
    • http://www.gorillawalker.com/my-experiences-in-a-lunatic-asylum-kindle-edition.pdf
    • http://www.gorillawalker.com/travels-in-peru-and-mexico-volume-1.pdf
    • http://www.gorillawalker.com/the-illustrations-from-the-works-of-andreas-vesalius-of-brussels.pdf
    • http://www.gorillawalker.com/jazz-classics-big-band-play-along-vol-4-drums.pdf
    • http://www.gorillawalker.com/creative-mind-play-collections-cd-rom-collection-1.pdf
    • http://www.gorillawalker.com/folk-festivals-north-american-folklore.pdf
    • http://www.gorillawalker.com/consumer-behavior-text-only-5-edition-by-w-d-hoyer.pdf
    • http://www.gorillawalker.com/why-we-suck-a-feel-good-guide-to-staying-fat.pdf
    • http://www.gorillawalker.com/the-thirstland-trek.pdf
    • http://www.gorillawalker.com/big-tractors-machines-that-work.pdf
    • http://www.gorillawalker.com/boatbuilding-a-complete-handbook-of-wooden-boat-building.pdf
    • http://www.gorillawalker.com/montezuma-warlord-of-the-aztecs-potomac-books-military-profiles.pdf
    • http://www.gorillawalker.com/beautiful-michigan.pdf
    • http://www.gorillawalker.com/purely-functional-data-structures-kindle-edition.pdf
    • http://www.gorillawalker.com/the-eighteenth-century-cambridge-introduction-to-the-history-of-art.pdf
    • http://www.gorillawalker.com/cubans-the-ultimate-cigars.pdf
    • http://www.gorillawalker.com/come-on-shore-and-we-will-kill-and-eat-you.pdf
    • http://www.gorillawalker.com/stilistik-der-russischen-wortbildung-beitrage-zur-slavistik-german-edition.pdf
    • http://www.gorillawalker.com/wandering-souls-protestant-migrations-in-america-1630-1865.pdf
    • http://www.gorillawalker.com/hollywood-lesbians.pdf
    • http://www.gorillawalker.com/noran-bang-the-yellow-room.pdf
    • http://www.gorillawalker.com/lovemarks.pdf
    • http://www.gorillawalker.com/quick-guide-roofing-step-by-step-installation-techniques.pdf
    • http://www.gorillawalker.com/ice-manual-of-bridge-engineering-2nd-edition.pdf
    • http://www.gorillawalker.com/steck-vaughn-ged-opt-half-lenghth-practice-test-5pk-grades.pdf
    • http://www.gorillawalker.com/leisure.pdf
    • http://www.gorillawalker.com/the-christmas-boy.pdf
    • http://www.gorillawalker.com/the-evangelistic-zeal-of-george-whitefield.pdf
    • http://www.gorillawalker.com/autotools-mythbuster.pdf
    • http://www.gorillawalker.com/lusty-librarians-6-book-erotic-box-set-daddy-s-girl.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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