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://ggtraff.ru/strik?keyword=google+sheets+templates+calendar+2020 In PDF document text

  • http://fekarowe.homebirthsupply.com/uploads/1/3/0/7/130775584/503192.pdfIn PDF document text
  • http://files.cultureconnection360.com/uploads/1/3/1/3/131379940/7456233.pdfIn PDF document text
  • http://files.firstenglishtyler.com/uploads/1/3/1/4/131453384/4719643df77c37.pdfIn PDF document text
  • http://dubopi.perashlaw.com/uploads/1/3/1/4/131410952/802c1f34.pdfIn PDF document text
  • http://files.pharosjot.com/uploads/1/3/1/4/131453610/roradovixem_vemexisegida_farewilesojawip_tarowev.pdfIn PDF document text
  • http://rovujo.mysje.org/uploads/1/3/2/7/132740267/biguwokep.pdfIn PDF document text
  • http://files.arminalamanna.com/uploads/1/3/0/7/130738497/buradasadorozupesi.pdfIn PDF document text
  • http://files.bakingwithella.com/uploads/1/3/1/4/131483218/a5c4d9.pdfIn PDF document text
  • http://files.london-acupuncture.com/uploads/1/3/1/3/131398171/luzuro.pdfIn PDF document text
  • http://files.pegasosaddleryandleatherwork.com/uploads/1/3/2/6/132696558/xazilux.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000059e1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000059e1.bin)
  • 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 extracted file (font_00_sfnt_off000059e1.bin)

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