Malicious PDF — malware analysis report

Static analysis result for SHA-256 be81e71e5f021454…

MALICIOUS

PDF

44.6 KB Created: 2018-12-02 10:55:14 +03:00 Authoring application: Pscript.dll Version 5.0 (via AFPL Ghostscript 8.50)
MD5: 60d3e9eb16aa575dfefdf5c804be6233 SHA-1: d6501b637100c0f4e7aed7fff177cd8d1228a802 SHA-256: be81e71e5f02145421d5bad1b21f1bd9d383139f7b87274be87310899c792354
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9007

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/digital-art-techniques-for-illustrators-artists-the-essential-guide-to.pdf
    • http://www.gorillawalker.com/the-lyre-and-the-oaten-flute-garcilaso-and-the-pastoral.pdf
    • http://www.gorillawalker.com/dostoevsky-s-the-devils-a-critical-companion-northwestern-aatseel-critical.pdf
    • http://www.gorillawalker.com/costa-rica-webster-s-timeline-history-1999-2007.pdf
    • http://www.gorillawalker.com/tessellations-the-history-and-making-of-symmetrical-designs.pdf
    • http://www.gorillawalker.com/buddhism-eyewitness-guides.pdf
    • http://www.gorillawalker.com/geodesy-what-s-that-my-personal-involvement-in-the-age.pdf
    • http://www.gorillawalker.com/useful-baskets.pdf
    • http://www.gorillawalker.com/the-car-collector-car-classics-magazine-january-1996-special-issue.pdf
    • http://www.gorillawalker.com/brilliant-not-bullied-workplace-bullying-unveiled-take-back-control-of.pdf
    • http://www.gorillawalker.com/wounds-of-attachment-an-american-in-beijing-volume-2.pdf
    • http://www.gorillawalker.com/experimental-love-poetry.pdf
    • http://www.gorillawalker.com/every-day-is-an-atheist-holiday-more-magical-tales-from.pdf
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    • http://www.gorillawalker.com/french-lessons-recipes-and-techniques-for-a-new-generation-of.pdf
    • http://www.gorillawalker.com/africa-why-economists-get-it-wrong-zed-books-african-arguments.pdf
    • http://www.gorillawalker.com/see-without-glasses-the-correction-of-eye-strain-and-the.pdf
    • http://www.gorillawalker.com/the-agenda-inside-the-clinton-white-house.pdf
    • http://www.gorillawalker.com/1946-map-of-india-and-burma-national-geographic-magazine-april.pdf
    • http://www.gorillawalker.com/secured-transactions-emanuel-law-outlines-series.pdf
    • http://www.gorillawalker.com/drachenblut-gefangen-in-der-magie-german-edition.pdf
    • http://www.gorillawalker.com/facing-the-monarch-modes-of-advice-in-the-early-chinese.pdf
    • http://www.gorillawalker.com/biofilms-investigative-methods-and-applications.pdf
    • http://www.gorillawalker.com/interaction-effects-in-multiple-regression-quantitative-applications-in-the-social.pdf
    • http://www.gorillawalker.com/pokemon-yellow-prima-s-official-strategy-guide.pdf
    • http://www.gorillawalker.com/trinity-and-religious-pluralism-the-doctrine-of-the-trinity-in.pdf
    • http://www.gorillawalker.com/best-of-faith-fiction-fun-and-fanciful.pdf
    • http://www.gorillawalker.com/count-it-up-diet-journal.pdf
    • http://www.gorillawalker.com/ergonomics-for-beginners-a-quick-reference-guide-second-edition.pdf
    • http://www.gorillawalker.com/winnie-the-pooh-s-little-book-of-wisdom-winnie-the.pdf
    • http://www.gorillawalker.com/chasing-dragons-an-uncommon-memoir-in-photographs.pdf
    • http://www.gorillawalker.com/liability-design-changes-afoot-risk-primer-an-article-from-risk.pdf
    • http://www.gorillawalker.com/the-birth-of-art-photography-from-pictorialism-to-modern-photography.pdf
    • http://www.gorillawalker.com/c-for-kids-a-fun-and-visual-introduction-to-the.pdf
    • http://www.gorillawalker.com/intelligent-design-in-science-religion-and-you.pdf
    • http://www.gorillawalker.com/symphonic-study-machines-score-faber-edition.pdf
    • http://www.gorillawalker.com/croatia-labor-laws-and-regulations-handbook-strategic-information-and-basic.pdf
    • http://www.gorillawalker.com/icarus-international-journal-of-solar-system-studies-vol-52-no.pdf
    • http://www.gorillawalker.com/the-vision-of-modern-dance-in-the-words-of-its.pdf
    • http://www.gorillawalker.com/autism-a-definitive-guide-to-parenting-an-autistic-child-to.pdf
    • http://www.gorillawalker.com/tessellations-the-history-a
    • 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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