Malicious PDF — malware analysis report

Static analysis result for SHA-256 8291d580d6eaa110…

MALICIOUS

PDF

41.0 KB Created: 2018-11-23 20:31:06 +03:00 Authoring application: Adobe Acrobat 7.0 (via Adobe Acrobat 7.0 Image Conversion Plug-in)
MD5: cfe2e859c88a389f37900045d2326a22 SHA-1: 69fa36de602d495ad8678336f853b4b2fe69435a SHA-256: 8291d580d6eaa110f495ae88c68677700006e0456f396b8b741881d6fdbbf031
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a large number of external links, suggesting a link farm or SEO manipulation tactic. The ML classifier also indicated a high probability of maliciousness. While no scripts were extracted, the sheer volume of embedded URLs points to a malicious intent to direct users to potentially harmful content hosted on www.gorillawalker.com.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/pragmatism-and-its-critics.pdf
    • http://www.gorillawalker.com/contracts-cases-discussion-problems.pdf
    • http://www.gorillawalker.com/harcourt-social-studies-people-we-know-grade-2-teacher-s.pdf
    • http://www.gorillawalker.com/the-year-in-sweden.pdf
    • http://www.gorillawalker.com/by-the-daily-telegraph-the-daily-telegraph-big-book-of.pdf
    • http://www.gorillawalker.com/the-gourmet-s-companion-italian-menu-guide-translator.pdf
    • http://www.gorillawalker.com/lycan-gladiator-wolf-maiden-saga-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/the-enjoyment-of-music-twelfth-edition.pdf
    • http://www.gorillawalker.com/deadpool-volume-6-original-sin-marvel-now.pdf
    • http://www.gorillawalker.com/carnival-girl-modern-erotic-library.pdf
    • http://www.gorillawalker.com/pipilotti-rist-friedrich-christian-flick-collection.pdf
    • http://www.gorillawalker.com/frankie-and-johnny-in-the-claire-de-lune.pdf
    • http://www.gorillawalker.com/the-moon-the-new-solar-system.pdf
    • http://www.gorillawalker.com/the-16th-minute-of-fame-an-insider-s-guide-for.pdf
    • http://www.gorillawalker.com/colombia.pdf
    • http://www.gorillawalker.com/bicycle-touring-colombia-guide-to-cycling-the-colombian-andes-kindle.pdf
    • http://www.gorillawalker.com/maya-angelou-bloom-s-major-poets.pdf
    • http://www.gorillawalker.com/reading-skills-for-life-level-c-student-edition-ags-reading.pdf
    • http://www.gorillawalker.com/babewatch-bay-gender-transformation-erotica.pdf
    • http://www.gorillawalker.com/burkoff-s-exam-pro-essay-on-criminal-law.pdf
    • http://www.gorillawalker.com/pocket-guide-to-the-national-electrical-code-r-2005-edition.pdf
    • http://www.gorillawalker.com/on-writing-fiction-rethinking-conventional-wisdom-about-the-craft.pdf
    • http://www.gorillawalker.com/cyprus-berlitz-guidemap-berlitz-holiday-z-guidemaps.pdf
    • http://www.gorillawalker.com/promise-to-keep-promises-book-2.pdf
    • http://www.gorillawalker.com/the-public-health-quality-improvement-handbook.pdf
    • http://www.gorillawalker.com/mr-sam-how-sam-walton-built-walmart-and-became-america.pdf
    • http://www.gorillawalker.com/late-night-cowboy-cowboy-heat.pdf
    • http://www.gorillawalker.com/a-new-history-of-india.pdf
    • http://www.gorillawalker.com/kindness-wins-kindle-edition.pdf
    • http://www.gorillawalker.com/jesting-pilate-travels-through-india-burma-malaya-japan-china-and.pdf
    • http://www.gorillawalker.com/universal-philosophy.pdf
    • http://www.gorillawalker.com/glimpses-of-heaven.pdf
    • http://www.gorillawalker.com/central-alberta-backroad-mapbooks.pdf
    • http://www.gorillawalker.com/psychosocial-wellness-of-refugees-issues-in-qualitative-and-quantitative-research.pdf
    • http://www.gorillawalker.com/bareboat-charters-lloyd-s-shipping-law-library.pdf
    • http://www.gorillawalker.com/the-lotus-unleashed-the-buddhist-peace-movement-in-south-vietnam.pdf
    • http://www.gorillawalker.com/the-story-of-crass.pdf
    • http://www.gorillawalker.com/the-job-hunter-s-crystal-ball-read-the-minds-of.pdf
    • http://www.gorillawalker.com/cambridge-11-chike-and-the-river.pdf
    • http://www.gorillawalker.com/my-mind-has-many-colors.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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