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=estructura+de+lewis+del+nh3 In PDF document text

  • http://xafiti.bluemoonbeautyandskin.com/uploads/1/3/1/6/131607712/kunenotoka-govuwo.pdfIn PDF document text
  • http://files.jackieberridge.co.uk/uploads/1/3/1/1/131164239/c9cde796749.pdfIn PDF document text
  • http://files.prestigiouspaw.com/uploads/1/3/0/8/130874489/nexekuwuk.pdfIn PDF document text
  • http://files.caffeinatedlearning.com/uploads/1/3/0/9/130969966/c559b7b72624.pdfIn PDF document text
  • http://fozudir.reasoninbalance.com/uploads/1/3/1/8/131856097/4387636.pdfIn PDF document text
  • http://fowij.margsgardenz.com/uploads/1/3/1/8/131857363/6e445.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/d708121c-356b-4934-84e3-a23c1074ba00/83682697061.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/10e846c4-fdcd-423f-b207-dccd44a94add/3249084616.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3ca09bc7-9ea9-43d4-953b-6b1e80bf3980/kisiwijiwilede.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a7ca1ec2-ae6d-452c-a45e-da247045d21d/22296450156.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6200/8214/files/eliminator_ant_flea_and_tick_killer_plus_granules_safe_for_dogs.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/2062/6331/files/cs_go_case_opening_prayer.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/2147/8299/files/1235206556.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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