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://ttraff.me/123?keyword=cold+war+cartoons In PDF document text

  • https://cdn-cms.f-static.net/uploads/4403417/normal_5f9213bc6814f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393637/normal_5f93dd21ba861.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369183/normal_5f9b4a9d70107.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368951/normal_5f97583eb301f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389604/normal_5f8f37412e97a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375894/normal_5f9b1d74d1af0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370307/normal_5f912b51c4d98.pdfIn PDF document text
  • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/a825bd53.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374177/normal_5f89db541d6d0.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/005abd3d-103d-4e76-9d97-4bc9cf259858/tugefuwafuwuzajasopo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/11ec0c2c-bb7a-44ca-b0c4-d4d09bc821c8/75837294777.pdfIn PDF document text
  • https://s3.amazonaws.com/jipowumat/the_cable_cowboy.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9d19da37-d444-44c8-8408-1e2535f8d881/vetijafuxaxafupajevon.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ee40a080-3581-4c5c-bdcf-33736ccf217b/kalodumuvejisujuva.pdfIn PDF document text
  • https://s3.amazonaws.com/sepawi/acuerdo_de_paz_en_colombia_resumen.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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