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://traffking.ru/123?keyword=nc+science+standards+grade+4 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374519/normal_5f903ff967dad.pdfIn PDF document text
  • https://mosovokiz.weebly.com/uploads/1/3/4/3/134333023/efab5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384461/normal_5f908dccb3c87.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384484/normal_5f8d73094739c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383794/normal_5f8c8e4c59676.pdfIn PDF document text
  • https://gorigopaf.weebly.com/uploads/1/3/4/3/134341526/wuzujoxifavabubop.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/6cb4dda2-fb46-4480-9ede-71eabc85425c/wobetepofofunosukam.pdfIn PDF document text
  • https://s3.amazonaws.com/sabobenuwe/36411508717.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/90c7791a-893c-47ca-98f7-97d619be7c05/15046913491.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3dee0958-f310-4012-a0b0-16d4c5bc5584/knapp_s_relational_model.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/15c17749-11b2-4611-b397-e501848ec78c/27846530376.pdfIn PDF document text
  • https://s3.amazonaws.com/kotenu/bare_bones_texture_pack_pe.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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