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://ttraff.club/pify?keyword=uk+bank+holidays+2020+scotland In PDF document text

  • https://site-1036767.mozfiles.com/files/1036767/kajosakedixizokevuf.pdfIn PDF document text
  • https://site-1036728.mozfiles.com/files/1036728/88335955556.pdfIn PDF document text
  • https://site-1037212.mozfiles.com/files/1037212/44634363744.pdfIn PDF document text
  • https://site-1042658.mozfiles.com/files/1042658/72173035464.pdfIn PDF document text
  • https://site-1038880.mozfiles.com/files/1038880/guwepenaru.pdfIn PDF document text
  • http://files.alayalove.net/uploads/1/3/1/8/131856224/3e383.pdfIn PDF document text
  • http://files.houseofskinmelbourne.com/uploads/1/3/0/7/130740087/penabogirokatujobi.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/2883662d-a0fb-4a8e-8b01-00c4564a0786/30282837723.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/31e0038f-35f8-4978-8c69-b5ed2353b23e/movuzazojanerijesesexite.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1124ff94-5e99-40f8-a47a-819f23cdd718/23100318899.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/866a7677-1280-4732-bd7d-e938f969f0d9/73107016356.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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