Malicious PDF — malware analysis report

Heuristics 5

• 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.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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/strik?keyword=eminem+till+i+collapse+roblox+id In PDF document text

  • https://site-1038477.mozfiles.com/files/1038477/78938499921.pdfIn PDF document text
  • https://site-1048453.mozfiles.com/files/1048453/ditulowev.pdfIn PDF document text
  • https://site-1036751.mozfiles.com/files/1036751/82680206577.pdfIn PDF document text
  • https://site-1041861.mozfiles.com/files/1041861/40351086402.pdfIn PDF document text
  • http://files.designdome.net/uploads/1/3/0/9/130969079/nurosol_nebivowim.pdfIn PDF document text
  • http://files.darvanderhoop.com/uploads/1/3/0/9/130969373/739e2e01912b6c.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/2f422c2c-4c68-4eeb-b233-6c2b38063703/wapitabelukijazopi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0a12169d-249e-4013-9ab8-282025444d95/fotupidosafowe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8809075e-bcb3-41bc-a33a-b098e38bf60c/64388372681.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1976b84e-1e28-41ef-8480-39d23a1f2d41/dulewagizi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/acae9076-0c26-42d2-b457-0fedc9ee736d/28248867915.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a0f8c282-e367-4d46-b93c-864cc898f69b/rivemusuwi.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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