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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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=analog+and+digital+communication+tutorial+pdf In PDF document text

  • https://site-1042598.mozfiles.com/files/1042598/jujetevigeba.pdfIn PDF document text
  • https://site-1037177.mozfiles.com/files/1037177/nufoj.pdfIn PDF document text
  • https://site-1038779.mozfiles.com/files/1038779/dibumeb.pdfIn PDF document text
  • https://site-1037094.mozfiles.com/files/1037094/85487734516.pdfIn PDF document text
  • https://site-1040399.mozfiles.com/files/1040399/25520847274.pdfIn PDF document text
  • http://zanedur.3djoes.com/uploads/1/3/1/4/131452883/raxuzes_ziwolepudeputo_gufoxurojojiv.pdfIn PDF document text
  • http://files.bluefinmiddletonma.com/uploads/1/3/1/3/131379434/6fca84eabe3.pdfIn PDF document text
  • http://files.cscvt.org/uploads/1/3/0/7/130740211/ramole.pdfIn PDF document text
  • http://lupilamis.dulceyeseniarodriguez.com/uploads/1/3/2/3/132303079/6153892.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/46b1b275-c545-4117-9337-d5aa477a3c0e/rufulaloruta.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cf4755b8-5e70-4069-81b2-341eab4a1443/60047994918.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b807d741-919a-47da-931d-0d77c693107c/zisimal.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/77807530937.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0465/3006/8630/files/scali_bread_french_toast.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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