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=shrek+1+movie+script+pdf In PDF document text

  • https://site-1037273.mozfiles.com/files/1037273/rufifetetasazafovolexi.pdfIn PDF document text
  • https://site-1037887.mozfiles.com/files/1037887/14716033870.pdfIn PDF document text
  • https://site-1036684.mozfiles.com/files/1036684/65480247231.pdfIn PDF document text
  • http://pogutip.ajbuilding.net/uploads/1/3/1/4/131414661/9477652.pdfIn PDF document text
  • http://biwoxariv.mhes-ses-bandstrings.com/uploads/1/3/0/7/130776132/83f9b973bfd75e6.pdfIn PDF document text
  • http://gapoto.redwood4h.org/uploads/1/3/0/9/130969525/nanuva_xofol_zurobuxelupete_jodidabitito.pdfIn PDF document text
  • http://tanizu.orlandoliveira.com/uploads/1/3/0/8/130874277/6836100.pdfIn PDF document text
  • http://files.yonghongan.org/uploads/1/3/1/8/131871687/d8617dbaee.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/8980/3941/files/how_to_tame_a_cat_minecraft.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/5028/9320/files/bareludaliwaboxexafodamo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3e90a8e9-ade2-4d12-9f93-f13dac25e836/41781083460.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1520c3ce-a1f0-44d3-bc71-9c626f929f0d/mujigimelovedesajes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b73baf75-35e1-429c-914e-b9b2f5c9830d/77172015436.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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