Malicious PDF — malware analysis report

Heuristics 5

• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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 https://traffset.ru/123?keyword=world+3+castle+star+coins+super+mario+wii PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4377902/normal_5f8af45e8b1b2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392877/normal_5f9439ddf3933.pdfIn PDF document text
  • https://vevejeda.weebly.com/uploads/1/3/0/7/130776099/tijuwakikex-xekisabaw-fokosajega.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379483/normal_5f9e70bb4443c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4421335/normal_5f9ab8da1b7f6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366346/normal_5f89528b40898.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411218/normal_5f971126e6bbf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374521/normal_5f92da8b0af02.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365525/normal_5f8f1ad7f17e4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390681/normal_5f95cc657a985.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388424/normal_5f9a6d7f092f6.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/19b99e7f-7822-46df-9842-2a0f498814df/35620436705.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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