Malicious PDF — malware analysis report

Static analysis result for SHA-256 f95259b45caddf4c…

MALICIOUS

PDF

43.4 KB Created: 2018-12-02 11:00:08 +03:00 Authoring application: - (via Acrobat Distiller 4.05 for Windows)
MD5: 297ba5c9a67a65e063c79793043a49ef SHA-1: 93f11036a5cf504705f5e8335dd243956f0de131 SHA-256: f95259b45caddf4c9b0df2ac5d3d0ee7f03319715772b30d273b458b3c9c0d22
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. A critical heuristic identified a large number of embedded external links, suggesting a link farm or a distribution mechanism for further malicious content. The document body contains numerous URLs pointing to various PDF files hosted on www.gorillawalker.com, which are likely part of this SEO manipulation or content distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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/the-rahmani-of-m-p-kunhikunhi-malmi-of-kavaratti-a.pdf
    • http://www.gorillawalker.com/winning-legal-strategies-for-biotech-companies-intellectual-property-protection-fda.pdf
    • http://www.gorillawalker.com/the-tutankhamun-prophecies-the-sacred-secret-of-the-maya-egyptians.pdf
    • http://www.gorillawalker.com/beneath-him-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/mechanics-of-residual-soils-second-edition.pdf
    • http://www.gorillawalker.com/ec-and-wto-anti-dumping-law-a-handbook.pdf
    • http://www.gorillawalker.com/principles-digital-communication-system-computer-networks-charles-river-media-computer.pdf
    • http://www.gorillawalker.com/longman-dizionario-compatto-english-italian-secondary-beginner-intermediate-dictionary-and.pdf
    • http://www.gorillawalker.com/21-cfr-part-11-compliance-including-qualification-of-scada-systems.pdf
    • http://www.gorillawalker.com/money-and-the-space-economy.pdf
    • http://www.gorillawalker.com/industrial-strength-when-all-the-wares-are-soft-gigglebytes-humor.pdf
    • http://www.gorillawalker.com/the-avid-handbook-intermediate-techniques-strategies-and-survival-information-for.pdf
    • http://www.gorillawalker.com/electric-filters-artech-house-microwave-library.pdf
    • http://www.gorillawalker.com/chinese-music-and-musical-instruments.pdf
    • http://www.gorillawalker.com/the-portal.pdf
    • http://www.gorillawalker.com/atomic-collisions-and-spectra.pdf
    • http://www.gorillawalker.com/return-to-bull-run.pdf
    • http://www.gorillawalker.com/critical-thinking-about-psychology-hidden-assumptions-and-plausible-alternatives.pdf
    • http://www.gorillawalker.com/a-brief-history-of-thought-a-philosophical-guide-to-living.pdf
    • http://www.gorillawalker.com/a-paper-cocoon-kindle-edition.pdf
    • http://www.gorillawalker.com/l8r-g8r-internet-girls.pdf
    • http://www.gorillawalker.com/stonyfield-farm-yogurt-cookbook.pdf
    • http://www.gorillawalker.com/legalines-on-contracts-7th-keyed-to-ayres.pdf
    • http://www.gorillawalker.com/the-parlour-and-the-streets-elite-and-popular-culture-in.pdf
    • http://www.gorillawalker.com/the-backward-day.pdf
    • http://www.gorillawalker.com/a-color-atlas-of-otorhinolaryngology.pdf
    • http://www.gorillawalker.com/new-diet-for-the-x-15-engine-sae.pdf
    • http://www.gorillawalker.com/organic-whole-wheat-olive-oil-pinneapple-upside-down-cake-recipe.pdf
    • http://www.gorillawalker.com/kidnap-for-ransom-resolving-the-unthinkable.pdf
    • http://www.gorillawalker.com/college-costs-volume-3.pdf
    • http://www.gorillawalker.com/the-lifeguard-point-horror-kindle-edition.pdf
    • http://www.gorillawalker.com/star-wars-legacy-volume-9-monster.pdf
    • http://www.gorillawalker.com/rudyard-kipling-and-sir-henry-rider-haggard-on-screen-stage.pdf
    • http://www.gorillawalker.com/model-centered-learning-pathways-to-mathematical-understanding-using-geogebra.pdf
    • http://www.gorillawalker.com/groupware-workflow-and-intranets-re-engineering-the-enterprise-with-collaborative.pdf
    • http://www.gorillawalker.com/the-catty-cookie-cookbook-1.pdf
    • http://www.gorillawalker.com/the-fragmentary-latin-poets.pdf
    • http://www.gorillawalker.com/leadership-gender-and-organization-issues-in-business-ethics.pdf
    • http://www.gorillawalker.com/how-my-parents-learned-to-eat-sandpiper-houghton-mifflin-books.pdf
    • http://www.gorillawalker.com/bye-bye-big-bad-bullybug.pdf
    • http://www.gorillawalker.com/principles-digital-communication-s
    • 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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