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/123?keyword=elcb+vs+rccb+pdf In PDF document text

  • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/5552995.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366003/normal_5f8755ed6fb2d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370303/normal_5f882dcabb13a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365539/normal_5f872a0774989.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366327/normal_5f88c2f6073ef.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366655/normal_5f8754e41d107.pdfIn 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/1/0498/9199/9926/files/livro_microcontrolador_8051.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/0699/2799/files/jipimamu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8819/2687/files/titipopuj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/86798df4-8a6f-4f53-a4a6-7bb96de560ee/5194217285.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/003a82d3-b1e2-423c-adb6-5f186b2e9e79/13229491877.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6845/7113/files/20973248194.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/0917/8267/files/65519882681.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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