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://gettraff.ru/strik?keyword=ccna+v3+labs+pdf In PDF document text

  • http://files.greekcoinage.org/uploads/1/3/1/3/131379439/4714400.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/895e901a-7458-46d9-a9b9-f769d15819fd/46504885797.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e67689a-d364-4003-a5db-30c8c15f2ef2/31327894704.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f261cfa4-0a46-4a71-9a67-543f853f5449/47754537369.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b0a6544d-a417-4ef2-a45a-841d13281ea9/36858464569.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/12ddbc35-691b-4e1d-b396-ffbfab1b4fb3/ropiminedoturapuje.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ba9615c-e02b-4831-835d-a6df8507dbea/93771861494.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8edbb7b5-fd11-4e83-a9cc-79fe5e1b2380/terudovo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7590e90e-7540-4852-a93e-44123b48dbeb/ralolurepunidamiv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d074820e-4baf-455b-8a69-049c1e9ee1af/labem.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/2941/6104/files/mossberg_500_trigger_assembly_ebay.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/gidafuxinemuj.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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