Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://cctraff.ru/aws?keyword=rosetta+stone+hebrew+demo In PDF document text

  • https://nudiwosesi.weebly.com/uploads/1/3/4/3/134317077/9b6d5fb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414331/normal_5f97600be93d5.pdfIn PDF document text
  • https://xodetawutal.weebly.com/uploads/1/3/0/7/130774968/ce08ea6c718c.pdfIn PDF document text
  • https://luvumape.weebly.com/uploads/1/3/4/4/134438520/768a6b3053.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381095/normal_5f8d40b59fc0f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408981/normal_5f93879f597e2.pdfIn PDF document text
  • https://relugudikovok.weebly.com/uploads/1/3/4/2/134265752/keparamebis.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367308/normal_5f8885c213b0a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4421224/normal_5f9c9f651123d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380073/normal_5f91296c4b1c3.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000082f9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000082f9.bin)
  • https://uploads.strikinglycdn.com/files/47f6812a-bdea-4cb9-8884-ea390e89b0cf/zinegotupewum.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/938c7af2-1ca1-4b33-b922-0cdcde5f4480/44488680636.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9df710f8-baf9-46bf-ab41-5c9321ca6599/xoremasiposu.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 extracted file (font_00_sfnt_off000082f9.bin)

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