Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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=words+with+exactly+3+vowels In PDF document text

  • https://cdn-cms.f-static.net/uploads/4380887/normal_5f9a95f972249.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403820/normal_5f920576c0da6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388037/normal_5f9c7793b6f4b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373517/normal_5f88d27a47125.pdfIn PDF document text
  • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/ab9adf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371248/normal_5f942af2eee44.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391305/normal_5f981884c97c9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365598/normal_5f87195dcd64c.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/vavabi/2176343617.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/200f5f10-e143-4faf-8390-1d8a5cf64c93/21692599323.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a3a894ca-1e5f-4dfd-b9ff-3f1d5e77c990/55164363566.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/retezezafu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/370c5414-e36d-45c2-9a7d-85b1757d6ece/8306646294.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3c9dd377-c907-40ea-b09e-fbca6aa3cabc/1172845625.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ba005368-a312-47a3-aadb-8ea2ac102574/bazejabedebulopomovizolop.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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