Malicious PDF — malware analysis report

Static analysis result for SHA-256 316b2d87e9b1ecc6…

MALICIOUS

PDF

34.4 KB Created: 2020-01-03 01:39:57 +03:00 Authoring application: dvips(k) 5.96 Copyright 2005 Radical Eye Software (via GPL Ghostscript 8.57)
MD5: dc57e2336fda671ca99535bf2880c17f SHA-1: 9b1e2fa2e4a35a9c433011e8aae7014f97feb958 SHA-256: 316b2d87e9b1ecc6b58eb6bf717ffe8bfdcceedd9841ad2f6a116d6b66b5b21f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of external links to other PDF documents hosted on www.gorillawalker.com. This suggests a link farm or SEO manipulation tactic, potentially used to distribute malicious content or improve search engine ranking for malicious sites. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8531

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/access-to-justice-in-russia-issues-associated-with-the-arbitrazh.pdf
    • http://www.gorillawalker.com/expert-witness-handbook-a-guide-for-engineers-engineering-review-manual.pdf
    • http://www.gorillawalker.com/negroland-a-memoir.pdf
    • http://www.gorillawalker.com/the-healers-of-meligna-series-boxed-set-books-1-2.pdf
    • http://www.gorillawalker.com/the-ethics-of-management-the-irwin-series-in-management-and.pdf
    • http://www.gorillawalker.com/fit-for-consumption.pdf
    • http://www.gorillawalker.com/the-peruvian-exposition.pdf
    • http://www.gorillawalker.com/statutory-supplement-to-cases-and-materials-on-labor-la-collective.pdf
    • http://www.gorillawalker.com/how-to-make-natural-face-scrubs.pdf
    • http://www.gorillawalker.com/battle-pope.pdf
    • http://www.gorillawalker.com/field-and-laboratory-guide-to-tree-pathology-second-edition.pdf
    • http://www.gorillawalker.com/incredible-insects-2016-sticker-calendar.pdf
    • http://www.gorillawalker.com/aircraft-airconditioning-systems-vapor-cycle-an-aviation-maintenance-foundation-inc.pdf
    • http://www.gorillawalker.com/basic-linear-algebra-2nd-edition.pdf
    • http://www.gorillawalker.com/harlequin-historical-september-2015-box-set-2-of-2-the.pdf
    • http://www.gorillawalker.com/automated-lighting-the-art-and-science-of-moving-light-in.pdf
    • http://www.gorillawalker.com/bipolar-disorder-one-day-at-a-time-a-devotional-journal.pdf
    • http://www.gorillawalker.com/biography-between-structure-and-agency-central-european-lives-in-international.pdf
    • http://www.gorillawalker.com/islamic-ethos-and-the-specter-of-modernity-anthem-middle-east.pdf
    • http://www.gorillawalker.com/web-based-instruction-a-practical-guide-for-online-courses.pdf
    • http://www.gorillawalker.com/the-path-of-anger-the-book-and-the-sword-1.pdf
    • http://www.gorillawalker.com/one-night-stands-with-a-twist.pdf
    • http://www.gorillawalker.com/through-the-dark-a-darkest-minds-collection-a-darkest-minds.pdf
    • http://www.gorillawalker.com/who-will-pay-my-auto-accident-bills.pdf
    • http://www.gorillawalker.com/new-god-new-nation-protestants-and-self-reconstruction-nationalism-in.pdf
    • http://www.gorillawalker.com/a-rocky-mountain-christmas.pdf
    • http://www.gorillawalker.com/cambridge-latin-course-unit-4-workbook-north-american-edition-north.pdf
    • http://www.gorillawalker.com/the-news-machine-the-untold-story.pdf
    • http://www.gorillawalker.com/macmillan-encyclopedia-of-dinosaurs-and-prehistoric-animals.pdf
    • http://www.gorillawalker.com/national-geographic-magazine-april-1990-vol-177-no-4.pdf
    • http://www.gorillawalker.com/i-didn-t-know-you-were-so-tall-insights-and.pdf
    • http://www.gorillawalker.com/aa-street-by-street-west-yorkshire-midi-aa-street-by.pdf
    • http://www.gorillawalker.com/the-metapolis-dictionary-of-advanced-architecture-city-technology-and-society.pdf
    • http://www.gorillawalker.com/lust-alpha-males-and-taboo-tales-the-naughty-list-bundles.pdf
    • http://www.gorillawalker.com/mountain-biking-wisconsin-state-mountain-biking-series.pdf
    • http://www.gorillawalker.com/industrial-biotechnology-sustainable-growth-and-economic-success.pdf
    • http://www.gorillawalker.com/dark-harvest-large-print-hardcover.pdf
    • http://www.gorillawalker.com/don-juan-de-marana-pi-ce-de-th-tre-french.pdf
    • http://www.gorillawalker.com/nhs-pension-scheme-scotland-1999-2000-pension-scheme-statement-scottish.pdf
    • http://www.gorillawalker.com/we-never-sleep-studies-in-austrian-literature-culture-and-thought.pdf
    • http://www.gorillawalker.com/fi
    • 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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