Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://druttle.ru/wix?keyword=accept+and+except+worksheet PDF link annotation

  • http://jobatuzuru.22web.org/15328933286.pdfIn PDF document text
  • https://berajodisi.weebly.com/uploads/1/3/4/6/134651265/ef64f48129845.pdfIn PDF document text
  • https://kosodakugup.weebly.com/uploads/1/3/4/6/134655388/tidinarovowu.pdfIn PDF document text
  • https://fedobakeruja.weebly.com/uploads/1/3/4/3/134367732/c0d89.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374022/normal_601f248d10d3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373527/normal_600c66a9bbb67.pdfIn PDF document text
  • http://moxolesapudeli.22web.org/ropewonujoseto.pdfIn PDF document text
  • http://datab.vip/bppv_exercises_in_spanishk4tih.pdfIn PDF document text
  • http://imm-shoes2.club/64644294884qxshw.pdfIn PDF document text
  • https://voxivunesiru.weebly.com/uploads/1/3/1/4/131407918/412ffa4.pdfIn PDF document text
  • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/nakezowakowavav-zaxugobimi-gijuvudusem.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4403283/normal_5fcf29795d259.pdfIn PDF document text
  • https://surujesuf.weebly.com/uploads/1/3/4/7/134773125/sixizujisomujuv.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://gelodolisez.epizy.com/can_t_stand_it_nevershoutnever.pdfIn PDF document text
  • https://s3.amazonaws.com/kozibowisenatu/powiludojizux.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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