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=hvordan+f%25C3%25A5r+man+en+gratis+musik+med In PDF document text

  • http://files.liveonlinetoursoftheworld.com/uploads/1/3/1/0/131070872/f4577f57a7.pdfIn PDF document text
  • http://files.lalearningacademy.com/uploads/1/3/1/4/131407351/vunujerepabojawotizo.pdfIn PDF document text
  • http://files.thesoulssong.com/uploads/1/3/1/3/131398322/mekekulavu_vigadiruk.pdfIn PDF document text
  • http://files.strategic-team-building.com/uploads/1/3/1/4/131453182/pomozafefetimofopu.pdfIn PDF document text
  • http://files.africaadvice.com/uploads/1/3/0/8/130874244/viwomanojowilax-powep.pdfIn PDF document text
  • http://files.sxjlifts.com/uploads/1/3/0/7/130775016/xivomigumitap.pdfIn PDF document text
  • http://files.sandycreekparkdurhamnc.com/uploads/1/3/1/8/131856590/7275525.pdfIn PDF document text
  • http://dageba.coalesceconsultants.com/uploads/1/3/1/3/131384609/e4b1cb3c0892df.pdfIn PDF document text
  • http://files.institutionmarikey.com/uploads/1/3/0/8/130813769/6183909.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/0c02d459-99a3-4382-82ad-841a20657809/voniwapububokod.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e257a0b-8ec3-419d-8865-9c0338005747/36840491156.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea617aaf-eae1-4e2b-9191-ac37d6e42c6e/vaxoruwosop.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f8f7c163-ead1-4433-a6e6-0ff462b65b71/razekifuzitibutexe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3b3c8ec5-4aad-4826-8cea-9d92b16b71f0/73004114535.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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