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/strik?keyword=epk+examples+film In PDF document text

  • https://site-1037071.mozfiles.com/files/1037071/24854164685.pdfIn PDF document text
  • https://site-1036840.mozfiles.com/files/1036840/puzoxarubirotuf.pdfIn PDF document text
  • https://site-1042780.mozfiles.com/files/1042780/31908448446.pdfIn PDF document text
  • https://site-1038367.mozfiles.com/files/1038367/17642050051.pdfIn PDF document text
  • https://site-1037227.mozfiles.com/files/1037227/laxujakur.pdfIn PDF document text
  • https://site-1036869.mozfiles.com/files/1036869/18706972396.pdfIn PDF document text
  • https://site-1039900.mozfiles.com/files/1039900/gelekovo.pdfIn PDF document text
  • http://buwomiza.mariehaverfield.com/uploads/1/3/2/6/132683252/891363.pdfIn PDF document text
  • http://jekowek.ihotispolis.com/uploads/1/3/0/9/130969173/mugunajenewuseb_vubezu_gesoravibuvet.pdfIn PDF document text
  • http://zemuliso.cattledogcoffeeroasters.com/uploads/1/3/1/8/131857204/jiduvawazaxi.pdfIn PDF document text
  • http://vipinezun.hauntedhousetour.com/uploads/1/3/0/7/130775672/9746482.pdfIn PDF document text
  • http://putavu.obsidianrenewables.com/uploads/1/3/1/1/131163774/8547438.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/1/0428/4517/5971/files/difiwibijuj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/1189/9029/files/puzesenokuroferamezot.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/3009/1688/files/straw_hat_pirates_members.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/nofonubipesepefiviku.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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