Malicious PDF — malware analysis report

Static analysis result for SHA-256 534df7752330c936…

MALICIOUS

PDF

45.7 KB Created: 2018-11-14 08:15:38 +03:00 Authoring application: TeX (via pdfTeX-0.14f)
MD5: bf276e9679fb4fb2da4dfaf453f706ef SHA-1: 4265a3e42e86add940f9a59634de2ec956586649 SHA-256: 534df7752330c936f9167977a8fcf7127f5b9ae1059ca3380b064e86507a64f3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting the ability to determine the exact payload or intent beyond the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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/designing-and-writing-online-documentation-hypermedia-for-self-supporting-products.pdf
    • http://www.gorillawalker.com/management-of-temporomandibular-disorders-and-occlusion-print-replica-kindle-edition.pdf
    • http://www.gorillawalker.com/baptist-faith-in-action-the-private-writings-of-maria-baker.pdf
    • http://www.gorillawalker.com/themes-of-st-luke.pdf
    • http://www.gorillawalker.com/risk-management-derivatives.pdf
    • http://www.gorillawalker.com/the-pixar-touch-the-making-of-a-company.pdf
    • http://www.gorillawalker.com/architectural-engineering-design-structural-systems.pdf
    • http://www.gorillawalker.com/net-asset-rubber-clad-heroines-in-peril-sexy-heroines-in.pdf
    • http://www.gorillawalker.com/pearl-the-obsessions-and-passions-of-janis-joplin-a-biography.pdf
    • http://www.gorillawalker.com/by-sandra-f-rief-the-adhd-book-of-lists-a.pdf
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    • http://www.gorillawalker.com/logical-investigative-methods-critical-thinking-and-reasoning-for-successful-investigations.pdf
    • http://www.gorillawalker.com/planes-aviones-mega-military-machines-megamaquinas-militares.pdf
    • http://www.gorillawalker.com/angela-merkel-the-authorized-biography.pdf
    • http://www.gorillawalker.com/rv-electrical-systems-a-basic-guide-to-troubleshooting-repairing-and.pdf
    • http://www.gorillawalker.com/apostates-and-fugitives-from-religious-institutes-1942.pdf
    • http://www.gorillawalker.com/iso-6035-1983-cinematography-viewing-conditions-for-the-evaluation-of.pdf
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    • http://www.gorillawalker.com/sustaining-the-transition-the-social-saftey-net-in-postcommunist-europe.pdf
    • http://www.gorillawalker.com/know-doubt-embracing-uncertainty-in-your-faith.pdf
    • http://www.gorillawalker.com/chaucer-s-host-up-so-doun.pdf
    • http://www.gorillawalker.com/who-gets-it-when-you-go.pdf
    • http://www.gorillawalker.com/apothecary-jars-pharmaceutical-pottery-and-porcelain-in-europe-and-the.pdf
    • http://www.gorillawalker.com/inflammation-basic-principles-and-clinical-correlates.pdf
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    • http://www.gorillawalker.com/konstruktionslehre-des-stahlbetons-tragwerke-teil-b-entstehen-und-bestehen-der.pdf
    • http://www.gorillawalker.com/the-passionate-mind-a-manual-for-living-creatively-with-one.pdf
    • http://www.gorillawalker.com/qiang-s-quest-lightning-saga.pdf
    • http://www.gorillawalker.com/processes-of-technological-innovation-issues-in-organization-and-management-series.pdf
    • http://www.gorillawalker.com/stallions-studs-rodeo-cowboy.pdf
    • http://www.gorillawalker.com/delicious-valentine-s-day-lunch-recipes.pdf
    • http://www.gorillawalker.com/socially-intelligent-agents-creating-relationships-with-computers-and-robots-multiagent.pdf
    • http://www.gorillawalker.com/el-reverso-de-la-fortuna-spanish-edition.pdf
    • http://www.gorillawalker.com/welcome-to-mars-politics-pop-culture-and-weird-science-in.pdf
    • http://www.gorillawalker.com/logik-und-allgemeine-wissenschaftstheorie-vorlesungen-1917-18-mit-erganzenden-texten.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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