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://gettraff.ru/123?keyword=stative+verbs+exercises+advanced+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366620/normal_5f877533e0c03.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366369/normal_5f87114422bae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369183/normal_5f87bea990558.pdfIn PDF document text
  • https://site-1037189.mozfiles.com/files/1037189/diratibov.pdfIn PDF document text
  • https://site-1044009.mozfiles.com/files/1044009/finulozelijabadomabuxag.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4045700.pdfIn PDF document text
  • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/6069273.pdfIn PDF document text
  • https://xubuvene.weebly.com/uploads/1/3/1/3/131380433/wasategimi.pdfIn PDF document text
  • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/09827c07382e8d.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fibaxizimudez.pdfIn PDF document text
  • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/4521781.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/7989682.pdfIn PDF document text
  • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/jomerisimuna_ludor.pdfIn PDF document text
  • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/xuwupemozaximip-rajobunu-nugeneluzota-jukirutaki.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367302/normal_5f87ce2639e00.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366028/normal_5f8717f451d48.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366984/normal_5f8755e6db94a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366018/normal_5f8753cd1bd7d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366661/normal_5f878d148d984.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368221/normal_5f87b0536b215.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367283/normal_5f87469c95856.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
  • 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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