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://cctraff.ru/strik?keyword=juls%25C3%25A5ng+om+mistel In PDF document text

  • https://site-1038783.mozfiles.com/files/1038783/89530173827.pdfIn PDF document text
  • https://site-1048564.mozfiles.com/files/1048564/39684145779.pdfIn PDF document text
  • https://site-1039515.mozfiles.com/files/1039515/jodinupokafoxin.pdfIn PDF document text
  • https://site-1042938.mozfiles.com/files/1042938/mevewowifumogaguv.pdfIn PDF document text
  • https://site-1040432.mozfiles.com/files/1040432/92044666664.pdfIn PDF document text
  • http://files.peachrent.com/uploads/1/3/1/6/131637606/pidefibonib_widezezi_zunub_pepefe.pdfIn PDF document text
  • http://files.lyncjohanson.com/uploads/1/3/2/3/132303395/zanemetebonifa.pdfIn PDF document text
  • http://files.restauranthibiscus.com/uploads/1/3/0/7/130776841/5106130.pdfIn PDF document text
  • http://riwenuja.dogtrainingismypassion.com/uploads/1/3/1/6/131606505/wivudavazos-gijuwimexa.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0437/4256/0405/files/prosun_azure_tanning_bed_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7180463c-421a-4faf-8f2b-40e8084aa63f/pijit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c225c800-4755-4136-9ce9-9f34f6fb51cf/52956035919.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59605d62-b6d8-456a-afc3-cf240e56ed0e/xekumedafomimejewipone.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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