Malicious PDF — malware analysis report

Heuristics 4

• 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 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/pify?keyword=beatrix+potter+characters+images In PDF document text

  • https://site-1036750.mozfiles.com/files/1036750/76939668378.pdfIn PDF document text
  • https://site-1043132.mozfiles.com/files/1043132/16783384449.pdfIn PDF document text
  • https://site-1036734.mozfiles.com/files/1036734/69749476131.pdfIn PDF document text
  • http://wulufumed.aestheticsofleadership.com/uploads/1/3/1/4/131438437/4738054.pdfIn PDF document text
  • http://jozuxu.heidijohnsonpaintings.com/uploads/1/3/1/0/131070858/98118c0fc.pdfIn PDF document text
  • http://files.margauxfashiondesigns.com/uploads/1/3/1/3/131398019/23cc5b4df63.pdfIn PDF document text
  • http://gixupu.mosaicwellington.org/uploads/1/3/1/3/131383323/jejusu_keripusa_nalimefatifo.pdfIn PDF document text
  • http://mujusabi.mytechoasis.com/uploads/1/3/1/4/131406082/4604922.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/1/0438/1668/1629/files/closest_laundromat_to_my_location.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/3247/5798/files/tuvidunibivakepefomedukak.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/6342/7751/files/poe_witch_builds_beginner.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6e9db988-6c02-4250-93a0-722a0408cebd/satepizujovumevo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a45ee537-57a4-4844-92c5-f4e1f5ad091f/naxanunejokaletezuniwuw.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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