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://cctraff.ru/aws?keyword=biome+worksheet+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4388163/normal_5f9a074cc2007.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415962/normal_5fa22565e8cea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385417/normal_5f8d30c2ec148.pdfIn PDF document text
  • https://gilowowiwojet.weebly.com/uploads/1/3/4/3/134314399/758466067da58.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366347/normal_5f8744e931111.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367631/normal_5f88b549b287f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393488/normal_5f9b671892b84.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369146/normal_5f99ad0e4b124.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/e092108b-e74b-48eb-be6a-d3c27a0dc157/ludopulapufimularu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/910e1f0a-dfb5-4428-9994-f77412536ae3/resolver_ecuaciones_cubicas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/591dbbf7-45b6-4976-88f3-aff3705ee66d/62931151688.pdfIn PDF document text
  • https://s3.amazonaws.com/gopuze/58120526873.pdfIn PDF document text
  • https://s3.amazonaws.com/zunaduxa/95549632843.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7fb20ca0-3527-4538-9bbd-892427279214/lutiwufana.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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