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://gettraff.ru/strik?keyword=gerunds+and+infinitives+games+esl In PDF document text

  • https://cdn-cms.f-static.net/uploads/4382423/normal_5f8f3e94aefd9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388608/normal_5f9b7d4ec0190.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366009/normal_5f8733f3571bd.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007ce8.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007ce8.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000b2f5.bin)
  • https://s3.amazonaws.com/mamibis/14239811546.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7e060022-46b0-4658-9b18-06fffc5d8df9/rodaxatisibonuzoz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/11f43ac6-78ef-45da-9733-0bf6bdebbbe3/68836987437.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c2a54066-4d9e-4490-98d6-6f6cb526d52f/4233273595.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0f8a842a-cd35-4559-941f-2dbdff3f8eae/76064823816.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6af4dc01-88c5-4e14-b7c5-1487c6aae4a1/87129492584.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9c54c322-1a6e-42a9-a6f3-2b1d2a9f4392/3077811536.pdfIn PDF document text
  • https://s3.amazonaws.com/degerutisig/kabolemugemejusora.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fecdc245-7f4e-48bf-af45-f5a195f946dd/mobazavodof.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 extracted file (font_00_sfnt_off00007ce8.bin)

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