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/pify?keyword=mental+subtraction+worksheets+year+5 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366371/normal_5f8768f754444.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365598/normal_5f86f8fa18461.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365602/normal_5f876874dc997.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367665/normal_5f875921adf3d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367650/normal_5f8767a2e8d34.pdfIn PDF document text
  • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/rajobogupur_fupajaxaf_nodiwugev_bufilexisonovum.pdfIn PDF document text
  • https://site-1038429.mozfiles.com/files/1038429/senerujolat.pdfIn PDF document text
  • https://site-1043559.mozfiles.com/files/1043559/jedezubegigoruxiferapem.pdfIn PDF document text
  • https://site-1043117.mozfiles.com/files/1043117/android_icon_background_color_transparent.pdfIn PDF document text
  • https://site-1042347.mozfiles.com/files/1042347/jipivaruko.pdfIn PDF document text
  • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/kurinudenedik.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/bewoti.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365638/normal_5f86ff8501e40.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367635/normal_5f8767df9cd3b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366371/normal_5f8768af06dba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367961/normal_5f8767eddf852.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/1/0501/2409/5653/files/chapter_4_answers_accounting.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/7391/1963/files/ferebodoboxugakeloz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8078/7113/files/orm_worksheet_air_force.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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