Malicious PDF — malware analysis report

Heuristics 6

• 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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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://gettraff.ru/strik?keyword=elementos+de+un+poligono+irregular In PDF document text

  • http://papunob.hopejennings.com/uploads/1/3/1/4/131437987/lunofavulomoda_wimofuziz_waruke.pdfIn PDF document text
  • http://xepej.northwestcampingresources.com/uploads/1/3/1/4/131482993/8eb35e4786ca.pdfIn PDF document text
  • http://nekin.nikhilkashyap1990.com/uploads/1/3/1/6/131607662/535144.pdfIn PDF document text
  • http://nivomonif.healthymarathonmoms.com/uploads/1/3/0/7/130738711/3044041.pdfIn PDF document text
  • http://fiwoxexex.kofc8733.org/uploads/1/3/1/8/131872295/jufezikuf_kebadovoxufoxir_komogisosoguwix.pdfIn PDF document text
  • http://bewimuko.candellafabrica.com/uploads/1/3/1/0/131070374/589861.pdfIn PDF document text
  • http://mozodurav.statelineliteracycouncilbeloit.org/uploads/1/3/0/7/130740086/zobumamema-mozosu-siluxusefoluwov-redosopopob.pdfIn PDF document text
  • http://bamuxam.guildfordsongfest.com/uploads/1/3/0/7/130775189/d6f3e6.pdfIn PDF document text
  • http://files.habitathawaiiisland.org/uploads/1/3/1/3/131398242/firapexowege-bewebesibi-bokidunof.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/51d4be39-651b-43a0-8d91-1c287a778ac9/67403355629.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c9058652-4199-41a8-ab00-18edbb719f3a/17173715149.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/05d527dc-a733-485a-bbb3-8661be88bfb9/47089389365.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ececb255-138f-450d-839c-fabbd560c39d/61327253492.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/0866/6011/files/dead_space_weapons_dlc.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/4742/3652/files/lesos.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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