Malicious PDF — malware analysis report

Static analysis result for SHA-256 7891e441847fcd44…

MALICIOUS

PDF

40.5 KB Created: 2018-12-15 08:53:36 +03:00 Authoring application: easyPDF Printer Driver 4.3 (via BCL easyPDF 4.30 (0303))
MD5: 589ad994ac33af237a30813a324c380e SHA-1: 44e87e27dfdcb51a3ce9242b578b1b80bf8908f0 SHA-256: 7891e441847fcd4453329c956665e007305f9806afa63210357d45490028e35d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine rankings or distribute malicious content through these external resources.

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/american-regional-cuisines-food-culture-and-cooking.pdf
    • http://www.gorillawalker.com/south-east-bus-handbook.pdf
    • http://www.gorillawalker.com/the-beastly-pirates.pdf
    • http://www.gorillawalker.com/the-lord-s-prayer-for-children-baby-blessings.pdf
    • http://www.gorillawalker.com/chasing-merlin.pdf
    • http://www.gorillawalker.com/chorales-chorales-1-91.pdf
    • http://www.gorillawalker.com/data-now-bigger-and-better-prickly-paradigm-press.pdf
    • http://www.gorillawalker.com/the-hoarders-material-deviance-in-modern-american-culture.pdf
    • http://www.gorillawalker.com/social-psychology-of-clothing-symbolic-appearances-in-context-of-kaiser.pdf
    • http://www.gorillawalker.com/sleep-disorders-an-alternative-medicine-definitive-guide.pdf
    • http://www.gorillawalker.com/the-man-who-bombed-karachi.pdf
    • http://www.gorillawalker.com/the-sight-of-hell-vol-10-classic-reprint.pdf
    • http://www.gorillawalker.com/rafting-quifet-creek.pdf
    • http://www.gorillawalker.com/a-visit-to-jebel-shammar-nedj-new-routes-through-northern.pdf
    • http://www.gorillawalker.com/stacy-kellams-probate-possibilities-welcome-to-the-world-of-unlimited.pdf
    • http://www.gorillawalker.com/field-of-fantasies-baseball-stories-of-the-strange-and-supernatural.pdf
    • http://www.gorillawalker.com/my-beautiful-bow-an-adoption-story.pdf
    • http://www.gorillawalker.com/licensing-update-2013.pdf
    • http://www.gorillawalker.com/physicians-desk-reference-2009-pdr-63rd-edition.pdf
    • http://www.gorillawalker.com/a-polite-and-commercial-people-england-1727-1783-new-oxford.pdf
    • http://www.gorillawalker.com/verdure.pdf
    • http://www.gorillawalker.com/new-mycommunicationlab-without-pearson-etext-standalone-access-card-for-public.pdf
    • http://www.gorillawalker.com/gold-standard-in-international-trade-report-on-the-introduction-of.pdf
    • http://www.gorillawalker.com/advanced-typing-skills.pdf
    • http://www.gorillawalker.com/implants-in-clinical-dentistry-second-edition.pdf
    • http://www.gorillawalker.com/my-little-blue-robot.pdf
    • http://www.gorillawalker.com/the-uninvited-guest-a-gareth-and-gwen-medieval-mystery.pdf
    • http://www.gorillawalker.com/gnosis-book-three-the-esoteric-cycle-study-and-commentaries-on.pdf
    • http://www.gorillawalker.com/just-german-shepherds-2015-box-calendar.pdf
    • http://www.gorillawalker.com/radical-ecstasy.pdf
    • http://www.gorillawalker.com/euripides-children-of-heracles-hippolytus-andromache-hecuba-loeb-classical-library.pdf
    • http://www.gorillawalker.com/scripture-a-guide-for-the-perplexed.pdf
    • http://www.gorillawalker.com/solo-the-north-pole-alone-and-unsupported.pdf
    • http://www.gorillawalker.com/perl-by-example-5th-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/translingual-narration-colonial-and-postcolonial-taiwanese-fiction-and-film.pdf
    • http://www.gorillawalker.com/the-angel-s-command-castaways-of-the-flying-dutchman.pdf
    • http://www.gorillawalker.com/the-elements-of-continuum-biomechanics.pdf
    • http://www.gorillawalker.com/love-in-play.pdf
    • http://www.gorillawalker.com/sgt-frog-vol-18.pdf
    • http://www.gorillawalker.com/exilius-the-banish-d-roman.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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