Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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/aws?keyword=code.org+answers+course+4 PDF link annotation

  • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/zuvekazabuz-topofelo-gupolekodojavo-ponabiloxe.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/monirafulowafix.pdfIn PDF document text
  • https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/2138368.pdfIn PDF document text
  • https://tidijutaxidekoz.weebly.com/uploads/1/3/4/5/134589823/5720134.pdfIn PDF document text
  • https://xigunokitipir.weebly.com/uploads/1/3/4/6/134615451/safuk.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000090ed.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000090ed.bin)
  • https://uploads.strikinglycdn.com/files/50c7a12e-8711-4ee1-9cb4-c9370ecf1d46/triangle-exterior_angle_worksheet_answers.pdfIn PDF document text
  • https://fidunonip.files.wordpress.com/2020/11/8625666511.pdfIn PDF document text
  • https://gorujugiximu.files.wordpress.com/2020/11/karipevo.pdfIn PDF document text
  • https://dilopipo.files.wordpress.com/2020/11/demetivudaxakoleze.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 extracted file (font_00_sfnt_off000090ed.bin)

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