Malicious PDF — malware analysis report

Static analysis result for SHA-256 15976e8cefc28311…

MALICIOUS

PDF

34.9 KB Created: 2020-02-21 01:46:09 +03:00 Authoring application: Adobe InDesign CS (3.0.1) (via Adobe PDF Library 6.0)
MD5: 440fda42133befd60dfc3dc4e60f8bed SHA-1: 7f52e8243b469c6e2740954660dde2b9b45e070a SHA-256: 15976e8cefc28311dd362b362bcbcd1c3509724413add3dda6b99ae663ac05ee
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, primarily hosted on 'gorillawalker.com'. This technique is often used to distribute malicious content or to create link farms for SEO manipulation. The ML classifier also flagged this PDF as malicious, supporting the suspicious nature of the link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8255

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/die-besten-smoothies.pdf
    • http://www.gorillawalker.com/en-el-bunker-con-hitler-in-the-bunker-with-hitler.pdf
    • http://www.gorillawalker.com/oranges-peanuts-for-sale-new-directions-paperbook.pdf
    • http://www.gorillawalker.com/life-citizens-of-logan-pond-volume-1.pdf
    • http://www.gorillawalker.com/messe-solennelle-de-sainte-c-cile-full-score-a2607.pdf
    • http://www.gorillawalker.com/cliffsnotes-on-bronte-s-wuthering-heights-cliffsnotes-literature-guides.pdf
    • http://www.gorillawalker.com/the-willowdale-handcar-or-the-return-of-the-black-doll.pdf
    • http://www.gorillawalker.com/help-my-kind-makeer-iets-die-pyn-en-hoop-rondom.pdf
    • http://www.gorillawalker.com/a-field-guide-to-the-plants-of-arizona.pdf
    • http://www.gorillawalker.com/an-inspector-calls-york-notes-for-gcse-2010.pdf
    • http://www.gorillawalker.com/latin-alive-book-one.pdf
    • http://www.gorillawalker.com/vaccines-and-vaccination-the-dangerous-truth-behind-the-vaccine-epidemic.pdf
    • http://www.gorillawalker.com/froggy-bakes-a-cake.pdf
    • http://www.gorillawalker.com/how-you-can-master-final-expense-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/the-lost-girl-choc-lit.pdf
    • http://www.gorillawalker.com/engaging-haydn-culture-context-and-criticism.pdf
    • http://www.gorillawalker.com/surf-in-the-water-with-wave-hunters.pdf
    • http://www.gorillawalker.com/principles-and-applications-of-domestic-animal-behavior-cabi.pdf
    • http://www.gorillawalker.com/guitar-one-presents-open-ears-a-journey-through-life-with.pdf
    • http://www.gorillawalker.com/us-army-technical-manual-installation-and-repair-practices-volume-iii.pdf
    • http://www.gorillawalker.com/primetime-propaganda-the-true-hollywood-story-of-how-the-left.pdf
    • http://www.gorillawalker.com/understanding-electrocardiography-arrhythmias-and-the-12-lead-ecg.pdf
    • http://www.gorillawalker.com/the-firekeeper-s-son.pdf
    • http://www.gorillawalker.com/managing-engineering-and-technology-6th-edition.pdf
    • http://www.gorillawalker.com/2010-take-back-america.pdf
    • http://www.gorillawalker.com/beauty-and-the-beast-children-s-theatre-playscript.pdf
    • http://www.gorillawalker.com/the-spatial-the-legal-and-the-pragmatics-of-world-making.pdf
    • http://www.gorillawalker.com/diving-and-digging-for-gold-prospecting-and-treasure-hunting.pdf
    • http://www.gorillawalker.com/the-isolated-self-irony-as-truth-and-untruth-in-soren.pdf
    • http://www.gorillawalker.com/the-fourfold-way-in-real-analysis-an-alternative-to-the.pdf
    • http://www.gorillawalker.com/whistler-and-his-mother-an-unexpected-relationship-secrets-of-an.pdf
    • http://www.gorillawalker.com/a-boy-and-a-bear-the-children-s-relaxation-book.pdf
    • http://www.gorillawalker.com/enciclopedia-ilustrada-de-los-cactus-y-otras-suculentas-illustrated-encyclopedia.pdf
    • http://www.gorillawalker.com/uncle-john-vassar-or-the-fight-of-faith.pdf
    • http://www.gorillawalker.com/the-santa-barbara-restaurant-guide.pdf
    • http://www.gorillawalker.com/what-you-really-need-to-know-about-irritable-bowel-syndrome.pdf
    • http://www.gorillawalker.com/testability-concepts-for-digital-ics-the-macro-test-approach-frontiers.pdf
    • http://www.gorillawalker.com/walking-like-a-duck-the-true-story-of-a-nurse.pdf
    • http://www.gorillawalker.com/cottage-gardening-in-town-and-country.pdf
    • http://www.gorillawalker.com/powerfully-fit-dozens-of-ways-to-boost-strength-increase-endurance.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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