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://traffking.ru/aws?keyword=words+for+a+sympathy+card+for+father In PDF document text

  • https://cdn-cms.f-static.net/uploads/4426543/normal_5f995a1acbfa3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f8a2d87a4bd7.pdfIn PDF document text
  • https://tiwilofudux.weebly.com/uploads/1/3/1/6/131606348/gegamefejeroto.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372378/normal_5f97adf7295c7.pdfIn PDF document text
  • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/0a16ede369.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/3373854.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366317/normal_5f90dd528d4aa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4419003/normal_5f95f39835bc3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366047/normal_5f88a8a0a192d.pdfIn PDF document text
  • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/7708348.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/jipowumat/dna_labeling_worksheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bb194d18-b3a0-43ee-a43d-c71584775d06/a_visual_analogy_guide_to_human_anat.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0496e7f0-f9b8-4457-b729-e320249b74ee/what_county_is_exton_pennsylvania_in.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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