Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea4c547ffda039e1…

MALICIOUS

PDF

43.8 KB Created: 2018-12-14 20:13:45 +03:00 Authoring application: XEP 4.4 build 20050610
MD5: ed25db257bc189daf169f329bed3e801 SHA-1: 7fcbdd89783691fde7ce00dc8142d2a94b4631a9 SHA-256: ea4c547ffda039e13d32a69e3d60f83cf66b58a24533317317205739f2350fb0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, identified as a link farm. This technique is often used to distribute malicious content or to engage in SEO manipulation for phishing purposes. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

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/i-am-reading-nurturing-young-children-s-meaning-making-and.pdf
    • http://www.gorillawalker.com/her-calling.pdf
    • http://www.gorillawalker.com/david-antin-the-hermeneutics-of-performance-critical-essay-an-article.pdf
    • http://www.gorillawalker.com/the-new-york-times-sunday-crossword-omnibus-volume-10-200.pdf
    • http://www.gorillawalker.com/life-sentence-dealing-with-a-diagnosis-of-multiple-sclerosis-one.pdf
    • http://www.gorillawalker.com/basic-principles-of-pharmacology-with-dental-hygiene-applications-08-by.pdf
    • http://www.gorillawalker.com/caderno-de-fume-smoke-notebook-cuentos-mitos-y-libros-regalo.pdf
    • http://www.gorillawalker.com/nonwoven-textiles.pdf
    • http://www.gorillawalker.com/behind-the-bridge-to-nowhere-ketchikan-alaska-as-we-see.pdf
    • http://www.gorillawalker.com/betty-crocker-s-do-ahead-cookbook-recipes-especially-for-the.pdf
    • http://www.gorillawalker.com/101-songwriting-wrongs-and-how-to-right-them-how-to.pdf
    • http://www.gorillawalker.com/the-book-of-mas-ud-sa-d-salman-poet-prisoner.pdf
    • http://www.gorillawalker.com/the-2009-2014-world-outlook-for-bar-soap.pdf
    • http://www.gorillawalker.com/space-race-a-graphic-novel-campfire-graphic-novels.pdf
    • http://www.gorillawalker.com/my-boyhood.pdf
    • http://www.gorillawalker.com/top-10-normandy-eyewitness-top-10-travel-guides.pdf
    • http://www.gorillawalker.com/adventures-of-the-connaught-rangers-vol-i-second-series.pdf
    • http://www.gorillawalker.com/orthopedic-manual-therapy-2-e-print-replica-kindle-edition.pdf
    • http://www.gorillawalker.com/party-girl-turtleback-school-library-binding-edition.pdf
    • http://www.gorillawalker.com/closet-control-the-ultimate-guide-to-revitalizing-your-wardrobe-and.pdf
    • http://www.gorillawalker.com/land-use-planning-made-plain.pdf
    • http://www.gorillawalker.com/the-disappearance-of-charlie-butters.pdf
    • http://www.gorillawalker.com/volcanoes-time-for-kids-nonfiction-readers-level-2-2.pdf
    • http://www.gorillawalker.com/the-complete-encyclopedia-of-pistols-and-revolvers.pdf
    • http://www.gorillawalker.com/the-witch-who-was-afraid-of-witches-i-can-read.pdf
    • http://www.gorillawalker.com/sport-in-britain-a-bibliography-of-historical-publications-1800-1988.pdf
    • http://www.gorillawalker.com/the-way-to-vibrant-health.pdf
    • http://www.gorillawalker.com/dat-tackling-life-and-the-nfl.pdf
    • http://www.gorillawalker.com/the-next-catastrophe-reducing-our-vulnerabilities-to-natural-industrial-and.pdf
    • http://www.gorillawalker.com/love-and-muddy-puddles-a-coco-and-charlie-franks-novel.pdf
    • http://www.gorillawalker.com/german-for-the-fifth-form.pdf
    • http://www.gorillawalker.com/classic-math-history-topics-for-the-classroom-grades-7-12.pdf
    • http://www.gorillawalker.com/recent-advances-in-histopathology-23.pdf
    • http://www.gorillawalker.com/love-and-paper.pdf
    • http://www.gorillawalker.com/looking-for-alibrandi.pdf
    • http://www.gorillawalker.com/a-guidebook-to-virginia-s-historical-markers-2nd-ed.pdf
    • http://www.gorillawalker.com/an-introduction-to-public-relations-and-communication-management-2e.pdf
    • http://www.gorillawalker.com/legal-environment-of-business-custom-edition-for-calif-state-university.pdf
    • http://www.gorillawalker.com/chinese-cookery-menu-masters.pdf
    • http://www.gorillawalker.com/middle-east-insurance-market-outlook-to-2015-next-destination-for.pdf
    • http://www.gorillawalker.com/life-sentence-dealing-with-a-diagnosis-of-mu
    • 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/