Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a339d3ee8e7660…

MALICIOUS

PDF

34.9 KB Created: 2020-01-04 00:34:33 +03:00 Authoring application: easyPDF Printer Driver 4.3 (via BCL easyPDF 4.30 (0303))
MD5: d1feb2e47626bafe97003de6f3190ab9 SHA-1: 54ad0611554bcca3882b5af33b55fe993bdaab56 SHA-256: e4a339d3ee8e7660e81285a51beccbb859f997bd1452d4fb7f4a121d2d8b9631
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external documents, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8315

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/the-only-hope-of-the-world-george-bernard-shaw-and.pdf
    • http://www.gorillawalker.com/dalai-lama-my-son-a-mother-s-story.pdf
    • http://www.gorillawalker.com/beyond-the-wall-shattered-dimensions-book-2.pdf
    • http://www.gorillawalker.com/the-beijing-olympiad-the-political-economy-of-a-sporting-mega.pdf
    • http://www.gorillawalker.com/the-life-of-william-morris-volume-1.pdf
    • http://www.gorillawalker.com/tighten-your-tummy-in-2-weeks-lose-up-to-14.pdf
    • http://www.gorillawalker.com/funn-n-games.pdf
    • http://www.gorillawalker.com/medieval-art-of-sword-shield-the-combat-system-of-royal.pdf
    • http://www.gorillawalker.com/captured-tanks-in-german-service-small-tanks-and-armored-tractors.pdf
    • http://www.gorillawalker.com/rise-of-the-opal-overlords-return-of-kraggon-kraggon-is.pdf
    • http://www.gorillawalker.com/religious-conversion-religion-scholars-thinking-together.pdf
    • http://www.gorillawalker.com/my-merry-christmas.pdf
    • http://www.gorillawalker.com/evinrude-johnson-85-300-hp-two-stroke-1995-2002-clymer.pdf
    • http://www.gorillawalker.com/talk-radio-tcg-edition.pdf
    • http://www.gorillawalker.com/hating-whitey-and-other-progressive-causes.pdf
    • http://www.gorillawalker.com/the-veterinary-care-of-the-horse.pdf
    • http://www.gorillawalker.com/hands-on-science-no-lab-required-crystal-structure-an-article.pdf
    • http://www.gorillawalker.com/the-evolution-of-virtue-book-i-kindle-edition.pdf
    • http://www.gorillawalker.com/a-glance-in-the-rear-view-mirror-neoliberal-ideology-from.pdf
    • http://www.gorillawalker.com/lori-my-daughter-wrongfully-imprisoned-in-peru.pdf
    • http://www.gorillawalker.com/webgl-insights-digital.pdf
    • http://www.gorillawalker.com/schonberg-and-kandinsky-an-historic-encounter-contemporary-music-studies.pdf
    • http://www.gorillawalker.com/take-a-career-break-bringing-up-children-without-giving-up.pdf
    • http://www.gorillawalker.com/amish-paradise-volume-3-atonement-kindle-edition.pdf
    • http://www.gorillawalker.com/fam-s-musculoskeletal-examination-and-joint-injection-techniques-expert-consult.pdf
    • http://www.gorillawalker.com/zentangle-for-beginners-discover-how-to-zentangle-lessons-newly-revised.pdf
    • http://www.gorillawalker.com/leaving-him-behind-cutting-the-cord-and-breaking-free-after.pdf
    • http://www.gorillawalker.com/driving-lessons-a-you-know-who-girls-novel-the-you.pdf
    • http://www.gorillawalker.com/using-oral-history-in-community-history-projects-practices-in-oral.pdf
    • http://www.gorillawalker.com/science-a-discovery-in-comics.pdf
    • http://www.gorillawalker.com/the-joy-of-priesthood.pdf
    • http://www.gorillawalker.com/the-oxford-handbook-of-sondheim-studies-oxford-handbooks-print-replica.pdf
    • http://www.gorillawalker.com/alcohol-science-policy-and-public-health.pdf
    • http://www.gorillawalker.com/after-baby-abs.pdf
    • http://www.gorillawalker.com/el-letargo-de-los-esp-ritus-antolog-a-de-m.pdf
    • http://www.gorillawalker.com/wonhyo-s-philosophy-of-mind-the-international-association-for-wonhyo.pdf
    • http://www.gorillawalker.com/woodcarving-kidskills.pdf
    • http://www.gorillawalker.com/manadoob-mystery-of-the-moobia-stones.pdf
    • http://www.gorillawalker.com/the-photo-book-of-turkey-images-of-turkish-architecture-culture.pdf
    • http://www.gorillawalker.com/heavy-metal-the-adult-illustrated-fantasy-magazine-may-1977-issue.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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