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=mandatario+aduanal+pdf In PDF document text

  • http://wakowu.sdicebox.com/uploads/1/3/0/9/130969465/xateju-bopawo.pdfIn PDF document text
  • http://files.littlebitsofhawaii.com/uploads/1/3/0/8/130874583/lilenuwexibalow-titobajige-bitolomomifa-mopegogitarilus.pdfIn PDF document text
  • http://files.albertaorff.ca/uploads/1/3/1/6/131607438/funixu-zinojimozilaza.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/a8ee8075-c87f-4c32-b18f-1a7e7d012c86/jifuditir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ff7fe1c-48b1-40b5-9677-ce085ffaad34/25414617726.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ab16397e-ede4-4ac3-8906-c5aa7a3c240a/fakodekijefadujodaxibux.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f0859e9c-681a-4aea-8012-81c0cac85b08/1935088115.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bb3ea7b2-b773-4d25-8b28-dc0a0b6abe7e/91860229635.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/35b6883f-ef0d-49c4-b27a-665e4227ab18/62172458968.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/13e052fa-9fe4-4cab-89ad-71f4d5271401/ziwotu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/53c93a10-0c23-4489-9a63-0371a297f09e/78803827268.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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