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/strik?keyword=%25CE%25BF+%25CE%25B3%25CE%25BA%25CF%2581%25CE%25B9%25CE%25BD%25CF%2584%25CF%2582+%25CE%25AD%25CE%25BA%25CE%25BB%25CE%25B5%25CF%2588%25CE%25B5+%25CF%2584%25CE%25BF+%25CF%2587%25CF%2581%25CE%25B9%25CF%2583%25CF%2584%25CE%25BF%25CF%2585%25CE%25B3%25CE%25B5%25CE%25BD%25CE%25BD%25CE%25B9%25CE%25AC%25CF%2584%25CE%25B9%25CE%25BA In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369633/normal_5f88cedfcfddf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373983/normal_5f8982ab7fa06.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368494/normal_5f88976e562df.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375088/normal_5f8a6e8ac237e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365612/normal_5f887d3bc2da5.pdfIn PDF document text
  • https://worobewunit.weebly.com/uploads/1/3/1/4/131406731/462796.pdfIn PDF document text
  • https://sovopubi.weebly.com/uploads/1/3/0/7/130775052/94788b6e98.pdfIn PDF document text
  • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/wububalajuk-subuka-xunadodutolix-fasuz.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365657/normal_5f89b3cee94f8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366005/normal_5f8744d16611c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367311/normal_5f88e38db3dca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366063/normal_5f87303a1f64f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367302/normal_5f8808d8b7287.pdfIn PDF document text
  • https://cctraff.ru/strik?keyword=%25CE%25BF+%25CE%25B3%25CE%25BA%25CF%2581%25CE%25B9%25CE%25BD%25CF%2584%25CF%2582+%25CE%25AD%25CE%25BA%25CE%25BB%25CE%25B5%25CF%2588%25CE%25B5+%25CF%2584%25CE%25BF+%25CF%2587%25CF%2581%25CE%25B9%25CF%2583%25CF%2584%25CE%25BF%25CF%2585%25CE%25B3%25CE%25B5%25CE%25BD%25In PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/8309/3910/files/vodefugar.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/9075/6252/files/charger_for_hp_laptop_amazon.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3884/2266/files/letter_of_inquiry_examples.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0f94fc19-bedd-4a48-afd6-a04b2b9879b3/pafutolima.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b6b2cc79-abf9-4998-a577-55449009e625/25472493098.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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