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://trafffi.ru/strik?keyword=anderson+county+detention+center+ky PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4369310/normal_5f8bc6120263a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402710/normal_5f98d2d71399f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389801/normal_5f9397f8c9fc6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410013/normal_5f992600edf4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409614/normal_5fa20e6dedf04.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370530/normal_5f9413f6a8baa.pdfIn PDF document text
  • https://zewonawexekuke.weebly.com/uploads/1/3/4/3/134318694/b67d76391cc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379236/normal_5f9f159ff402f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404730/normal_5f92bc1c9bb44.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414688/normal_5fa0ad5a76cde.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375909/normal_5f91fff5f2b28.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393900/normal_5f963571e317d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4426413/normal_5fa0cae3b8c5b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374852/normal_5f8edd9c46081.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/0a0e3e17-7258-4f92-8e24-dd124c6d2c06/gunola.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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