Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c89660d031622ab…

MALICIOUS

PDF

43.7 KB Created: 2018-12-02 20:18:02 +03:00 Authoring application: PageMaker 6.5 (via Acrobat Distiller 4.05 for Windows)
MD5: eacd643df03c9af70e74d24451720fce SHA-1: 0f235a8c98d7f68a42cf3c8db8fba7e65b9a79cd SHA-256: 2c89660d031622aba7a31f270e662dcfef3cc3e18434b916d53f9753778bcb76
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded URLs pointing to external PDF files, indicating a potential link farm or SEO manipulation tactic. No scripts were extracted from this sample, and the document body contained mostly obfuscated data, limiting further analysis of its specific intent beyond the link farm.

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/810-rotating-machinery-direct-current-motors-videos.pdf
    • http://www.gorillawalker.com/let-s-go-the-budget-guide-to-washington-d-c.pdf
    • http://www.gorillawalker.com/finland-and-northern-scandinavia-national-geographic-adventure-map.pdf
    • http://www.gorillawalker.com/christian-boltanski-contemporary-artists.pdf
    • http://www.gorillawalker.com/okay-kindle-edition.pdf
    • http://www.gorillawalker.com/magic-tricks-get-started-in-a-new-craft-with-easy.pdf
    • http://www.gorillawalker.com/jv-44-the-galland-circus.pdf
    • http://www.gorillawalker.com/brasile-del-1815.pdf
    • http://www.gorillawalker.com/getting-over-getting-older-an-intimate-journey.pdf
    • http://www.gorillawalker.com/la-catrina-la-novela.pdf
    • http://www.gorillawalker.com/a-sending-of-dragons-the-pit-dragon-chronicles-volume-three.pdf
    • http://www.gorillawalker.com/a-gaffer-s-perspective-on-independent-filmmaking-practices-techniques-and.pdf
    • http://www.gorillawalker.com/a-fine-summer-s-day-an-inspector-ian-rutledge-mystery.pdf
    • http://www.gorillawalker.com/scale-development-theory-and-applications-applied-social-research-methods.pdf
    • http://www.gorillawalker.com/the-index-of-middle-english-prose-handlist-xii-manuscripts-in.pdf
    • http://www.gorillawalker.com/regulation-of-the-upstream-petroleum-sector-a-comparative-study-of.pdf
    • http://www.gorillawalker.com/the-boy-nihilist-or-young-america-in-russia.pdf
    • http://www.gorillawalker.com/don-t-tell-daddy-the-sweetest-taboo.pdf
    • http://www.gorillawalker.com/hoshi-sudoku-extreme-volume-5-276-puzzles.pdf
    • http://www.gorillawalker.com/patent-prosecution-practice-procedure-before-the-u-s-patent-office.pdf
    • http://www.gorillawalker.com/im-t-a-animal-behavior-7-e.pdf
    • http://www.gorillawalker.com/ophthalmology-expert-consult-online-and-print-4e.pdf
    • http://www.gorillawalker.com/guerra-del-narco-spanish-edition.pdf
    • http://www.gorillawalker.com/the-gift-of-christ-apostle-prophet-evangelist-pastor-and-teacher.pdf
    • http://www.gorillawalker.com/the-iranian-revolution-pivotal-moments-in-history.pdf
    • http://www.gorillawalker.com/hatred-s-kingdom-how-saudi-arabia-supports-the-new-global.pdf
    • http://www.gorillawalker.com/the-liver-healing-diet-the-m-d-s-nutritional-plan.pdf
    • http://www.gorillawalker.com/alex-unlimited-vol-2-split-second-sight.pdf
    • http://www.gorillawalker.com/trap.pdf
    • http://www.gorillawalker.com/global-perspectives-in-information-security-legal-social-and-international-issues.pdf
    • http://www.gorillawalker.com/bni-building-news-home-remodeler-s-costbook-2015-home-remodler.pdf
    • http://www.gorillawalker.com/health-for-all-the-vanga-story.pdf
    • http://www.gorillawalker.com/acting-games-for-individual-performers-a-comprehensive-workbook-of-110.pdf
    • http://www.gorillawalker.com/viennawalks.pdf
    • http://www.gorillawalker.com/analyzing-political-communication-with-digital-trace-data-the-role-of.pdf
    • http://www.gorillawalker.com/the-sons-of-shiva-amar-chitra-katha.pdf
    • http://www.gorillawalker.com/chapman-s-homer-the-iliad.pdf
    • http://www.gorillawalker.com/rulemaking-how-government-agencies-write-law-and-make-policy.pdf
    • http://www.gorillawalker.com/marketing-management-15th-edition.pdf
    • http://www.gorillawalker.com/philippe-soupault-der-vergessene-surrealist-studien-zu-seinem-erzahlerischen-werk.pdf
    • http://www.gorillawalk
    • 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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