Malicious PDF — malware analysis report

Static analysis result for SHA-256 95b11bae188b484b…

MALICIOUS

PDF

44.6 KB Created: 2018-12-02 10:54:50 +03:00 Authoring application: LaTeX with hyperref package (via XeTeX 0.99992)
MD5: 73b39f348b01af047e44994227cc72a5 SHA-1: 8550a755c5430018ecaf39e8a8d5197615330f10 SHA-256: 95b11bae188b484be7e1c95a7401dceb37c9367746ef10b92c049df1c0711cdf
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was not readable. The primary attack pattern observed is the mass linking to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9007

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/modernist-authenticities-the-material-body-and-the-poetics-of-amy.pdf
    • http://www.gorillawalker.com/case-study-research-design-and-methods-3rd-edition-applied-social.pdf
    • http://www.gorillawalker.com/financial-accounting-2nd-edition.pdf
    • http://www.gorillawalker.com/colloquial-russian-2-the-next-step-in-language-learning-100.pdf
    • http://www.gorillawalker.com/the-gateless-gate-all-48-koans-with-commentary-by-ekai.pdf
    • http://www.gorillawalker.com/advances-in-laparoscopic-surgery-an-issue-of-surgical-clinics-1e.pdf
    • http://www.gorillawalker.com/the-whole-world-sings-the-fans-behind-barry-manilow.pdf
    • http://www.gorillawalker.com/tritium-on-ice-the-dangerous-new-alliance-of-nuclear-weapons.pdf
    • http://www.gorillawalker.com/my-father-could-only-boil-cornflakes-peter-bayless-bbc-masterchef.pdf
    • http://www.gorillawalker.com/digital-logic-design-and-computer-organization-with-computer-architecture-for.pdf
    • http://www.gorillawalker.com/cpt-easy-links-oral-maxillofacial-surgery-oral-maxil-ofacial-surgery.pdf
    • http://www.gorillawalker.com/the-physics-of-pocket-billiards.pdf
    • http://www.gorillawalker.com/multiple-sclerosis-fact-book.pdf
    • http://www.gorillawalker.com/dim-mak-s-12-most-deadly-katas-points-of-no.pdf
    • http://www.gorillawalker.com/memory-and-cognition-in-learning-infoline.pdf
    • http://www.gorillawalker.com/obras-completas-10-ese-musico-que-llevo-dentro-1-obras.pdf
    • http://www.gorillawalker.com/korean-folk-songs-collection-24-traditional-songs-for-intermediate-level.pdf
    • http://www.gorillawalker.com/bleaching-teeth.pdf
    • http://www.gorillawalker.com/an-impending-post-conflict-period-global-financial-crisis-and-faltering.pdf
    • http://www.gorillawalker.com/dynamic-network-theory-how-social-networks-influence-goal-pursuit.pdf
    • http://www.gorillawalker.com/new-pathways-to-child-adolescent-psychiatry-volume-one.pdf
    • http://www.gorillawalker.com/defenders-of-the-covenant.pdf
    • http://www.gorillawalker.com/cosmic-code-book-vi-of-the-earth-chronicles.pdf
    • http://www.gorillawalker.com/field-guide-to-new-zealand-seabirds.pdf
    • http://www.gorillawalker.com/karate-action-sports-capstone.pdf
    • http://www.gorillawalker.com/how-to-get-into-the-top-law-schools-4th-forth.pdf
    • http://www.gorillawalker.com/kiss-of-broken-glass.pdf
    • http://www.gorillawalker.com/blue-bloods-the-graphic-novel.pdf
    • http://www.gorillawalker.com/mathematical-constants-encyclopedia-of-mathematics-and-its-applications.pdf
    • http://www.gorillawalker.com/practical-language-activities-materials-for-clinicians-and-teachers.pdf
    • http://www.gorillawalker.com/the-girls-of-atomic-city-the-untold-story-of-the.pdf
    • http://www.gorillawalker.com/algal-biorefineries-volume-1-cultivation-of-cells-and-products.pdf
    • http://www.gorillawalker.com/idle-hands.pdf
    • http://www.gorillawalker.com/social-capital-and-risk-sharing-an-islamic-finance-paradigm-palgrave.pdf
    • http://www.gorillawalker.com/the-world-turned-upside-down-sermons-on-the-book-of.pdf
    • http://www.gorillawalker.com/common-foundation-studies-in-nursing-text-and-evolve-ebooks-package.pdf
    • http://www.gorillawalker.com/the-color-line.pdf
    • http://www.gorillawalker.com/advances-in-underground-pipeline-engineering-second-international-conference-bellevue-washington.pdf
    • http://www.gorillawalker.com/alpha-male-learn-how-to-attract-women-build-unstoppable-charisma.pdf
    • http://www.gorillawalker.com/hotwire-requiem-for-the-dead.pdf
    • http://www.gorillawa
    • 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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