Malicious PDF — malware analysis report

Heuristics 6

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://traffset.ru/123?keyword=beyblade+burst+all+qr+codes PDF link annotation

  • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/f35ec57.pdfIn PDF document text
  • https://jagamasukibo.weebly.com/uploads/1/3/4/4/134493784/a206cb3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449012/normal_5fa330f659ff8.pdfIn PDF document text
  • https://vefavufarexuba.weebly.com/uploads/1/3/4/3/134315694/viweremise_nurulax_dejumoli_voturuguwuji.pdfIn PDF document text
  • https://kaxalosenawa.weebly.com/uploads/1/3/4/5/134576513/renexelerum_kikab_nemipon.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366321/normal_5f8fae541a0fa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373749/normal_5f9e0747cd973.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370533/normal_5f896be736f2f.pdfIn PDF document text
  • https://sanuvexugivi.weebly.com/uploads/1/3/1/6/131606490/taletisegel.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449627/normal_5f9ecdf797445.pdfIn PDF document text
  • https://weratirotiset.weebly.com/uploads/1/3/4/3/134322017/tebadudowefutudotaxu.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/273a186a-fbea-4332-919d-6c366f7b914e/sofeb.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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