Malicious PDF — malware analysis report

Heuristics 4

• 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 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://cctraff.ru/strik?keyword=cambridge+primary+english+activity+book+stage+4+answers+pdf In PDF document text

  • https://site-1037024.mozfiles.com/files/1037024/nebafataralezu.pdfIn PDF document text
  • https://site-1037088.mozfiles.com/files/1037088/xafimaraxizababe.pdfIn PDF document text
  • https://site-1037906.mozfiles.com/files/1037906/jepudurexikirof.pdfIn PDF document text
  • https://site-1036987.mozfiles.com/files/1036987/22941724353.pdfIn PDF document text
  • https://site-1038490.mozfiles.com/files/1038490/67678883502.pdfIn PDF document text
  • https://site-1037135.mozfiles.com/files/1037135/togireragasonujetewabelov.pdfIn PDF document text
  • https://site-1038707.mozfiles.com/files/1038707/76163585207.pdfIn PDF document text
  • https://site-1037103.mozfiles.com/files/1037103/sudadezepejuzuwezukab.pdfIn PDF document text
  • http://files.s-jandhyala.com/uploads/1/3/1/4/131407036/bebobifugufiluj.pdfIn PDF document text
  • http://files.cottonmouth-records.com/uploads/1/3/0/9/130969986/9270502.pdfIn PDF document text
  • http://files.zihouhealingarts.com.au/uploads/1/3/0/8/130813399/rusowigevenavoj_rupukowow_fojoxuliro.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/1/0437/1028/3931/files/mebalifuriwizapazub.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/0273/2448/files/1996_honda_accord_repair_manual.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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