Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa2344091de9c85…

MALICIOUS

PDF

34.9 KB Created: 2020-05-02 03:31:08 +03:00 Authoring application: Acrobat PDFMaker 5.0 for Word (via Acrobat Distiller 5.0 (Windows))
MD5: cd25d1accdd59f272336329cd5a69a06 SHA-1: b5151e8b8c6ba27fe918cdbdd4cc962762e410b6 SHA-256: 2fa2344091de9c85411db88e86a44051e495accac4e1d319057da92daf08bbcf
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a mass external PDF link farm, with 32 links identified. The ML classifier also indicated a high probability of maliciousness. While no scripts were extracted, the sheer volume of links to external PDFs suggests an attempt to manipulate search engine results or distribute further malicious content, potentially leading to a phishing or malware download scenario.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8263

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/sight-word-sentences-lessons-1-4-4-books-in-1.pdf
    • http://www.gorillawalker.com/human-diseases-a-systemic-approach-7th-seventh-edition.pdf
    • http://www.gorillawalker.com/how-to-play-your-best-golf-game-of-all-time.pdf
    • http://www.gorillawalker.com/new-york-city-photos-from-the-new-york-times-book.pdf
    • http://www.gorillawalker.com/arthurian-archives-italy.pdf
    • http://www.gorillawalker.com/the-rachel-files-the-untold-secrets-of-the-rachel-nickell.pdf
    • http://www.gorillawalker.com/molecules-and-heat-scientific-magic-series-volume-3.pdf
    • http://www.gorillawalker.com/lemons-into-limoncello-from-loss-to-personal-renaissance-with-the.pdf
    • http://www.gorillawalker.com/the-boy-s-king-arthur.pdf
    • http://www.gorillawalker.com/holt-geometry.pdf
    • http://www.gorillawalker.com/the-minutes-and-papers-of-the-westminster-assembly-1643-1653.pdf
    • http://www.gorillawalker.com/jesse-s-star-orca-young-readers.pdf
    • http://www.gorillawalker.com/credit-insurance-iowa-license-exam-manual.pdf
    • http://www.gorillawalker.com/philosophy-a-complete-introduction-teach-yourself-philosophy-religion.pdf
    • http://www.gorillawalker.com/chemistry-and-technology-of-soft-drinks-and-fruit-juices-sheffield.pdf
    • http://www.gorillawalker.com/tears-suitcases-mindwalker-diaires-book-8.pdf
    • http://www.gorillawalker.com/the-spy-and-the-billionaire-the-complete-series-spy-thriller.pdf
    • http://www.gorillawalker.com/learn-autocad-lt-98.pdf
    • http://www.gorillawalker.com/hidden-city-the-tamuli.pdf
    • http://www.gorillawalker.com/los-cuatro-libros-de-confucio-confucio-y-mencio-coleccion-la.pdf
    • http://www.gorillawalker.com/way-chronicles-hostage-room-premium-flash-fiction.pdf
    • http://www.gorillawalker.com/como-jes-s-nelson-pocket-inspiracion-spanish-edition.pdf
    • http://www.gorillawalker.com/royal-britain.pdf
    • http://www.gorillawalker.com/cryotherapy-can-put-prostate-cancer-into-a-deep-freeze-new.pdf
    • http://www.gorillawalker.com/bible-story-puzzle-146-n-146-learn-grades-1-2.pdf
    • http://www.gorillawalker.com/advanced-computing-lecture-notes-in-computational-science-and-engineering.pdf
    • http://www.gorillawalker.com/collected-writings-of-modern-western-scholars-on-japan-volumes-1.pdf
    • http://www.gorillawalker.com/smart-communities-how-citizens-and-local-leaders-can-use-strategic.pdf
    • http://www.gorillawalker.com/instruments-used-for-oral-surgery-a-self-instructional-guide-to.pdf
    • http://www.gorillawalker.com/alpha-cop-2-the-sexy-gay-werewolf-s-partner.pdf
    • http://www.gorillawalker.com/the-chocolate-guide-to-local-chocolatiers-chocolate-makers-boutiques-patisseries.pdf
    • http://www.gorillawalker.com/banach-algebra-techniques-in-operator-theory-pure-and-applied-mathematics.pdf
    • http://www.gorillawalker.com/introduction-to-torts-e-law-book-e-law-book-author.pdf
    • http://www.gorillawalker.com/mastering-online-research-a-comprehensive-guide-to-effective-and-efficient.pdf
    • http://www.gorillawalker.com/devon-rex-cats-checkerboard-animal-library-cats.pdf
    • http://www.gorillawalker.com/diary-of-a-play-production-an-account-of-a-high.pdf
    • http://www.gorillawalker.com/jonathan-meese-dash-snow-fanzine.pdf
    • http://www.gorillawalker.com/coaching-basketball-the-complete-book-from-beginning-to-championship-play.pdf
    • http://www.gorillawalker.com/cream-for-the-billionaire-3-total-disgrace-used-by-the.pdf
    • http://www.gorillawalker.com/cinquante-nuances-plus-sombres-la-trilogie-50-shades-tome-2.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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