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://traffking.ru/123?keyword=daria+write+where+it+hurts In PDF document text

  • https://lebaburi.weebly.com/uploads/1/3/4/4/134491334/583653fd7d5.pdfIn PDF document text
  • https://farenutatovepo.weebly.com/uploads/1/3/4/5/134502273/xurojeb-zunuwoxiba-gavomuwedum.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369645/normal_5f9933c99d17e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4425501/normal_5f9ed85359ddf.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/b38b841b-4844-41c2-b5dd-61a84e84c114/vogalamezosibedogowe.pdfIn PDF document text
  • https://mepuzafasaw.files.wordpress.com/2020/11/lean_startup_canvas_questions.pdfIn PDF document text
  • https://somopewikiga768872658.files.wordpress.com/2020/11/feeding_hannibal_a_connoisseur_s_cookbook.pdfIn PDF document text
  • https://zitoduf.files.wordpress.com/2020/11/dowsil_688_data_sheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fa77d1fe-ee07-4622-9b35-6a65009fd2e9/bedford_christmas_parade_2019.pdfIn PDF document text
  • https://s3.amazonaws.com/zaxawetawupo/romibifuxitexijasipoxuwo.pdfIn PDF document text
  • https://vasukobemuzo.files.wordpress.com/2020/11/68225519059.pdfIn PDF document text
  • https://sanizip.files.wordpress.com/2020/11/magnitudes_inversamente_proporcionales_ejercicios_resueltos.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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