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://ttraff.ru/wix?keyword=a+guide+to+deduction+pdf+free In PDF document text

  • http://files.penncrestlions.com/uploads/1/3/1/4/131454106/7272726.pdfIn PDF document text
  • http://fenivib.hungerstrikershandbook.org/uploads/1/3/0/8/130874339/nugebowuketuwikegi.pdfIn PDF document text
  • http://kutilen.tylercreekconsulting.com/uploads/1/3/1/3/131398475/fomaxo.pdfIn PDF document text
  • http://files.gtchsdevelopment.org/uploads/1/3/1/4/131438098/adcaea920a49.pdfIn PDF document text
  • http://resam.theheartofheatherworley.com/uploads/1/3/0/8/130874160/6964f8f4.pdfIn PDF document text
  • http://files.itsavillagefoundation.com/uploads/1/3/1/4/131406751/lovebaju-piwukivug-mowowulawofam.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
  • https://f39c558f-0e63-42bf-90c3-29079d2d105f.filesusr.com/ugd/1c8c1e_1629f095662248929b2cf175059c265f.pdf?index=trueIn PDF document text
  • https://ffad7fe8-8e16-4eab-a1d6-0ee96ee208e6.filesusr.com/ugd/b91566_60b4cd6d1739404aa787de81af28df14.pdf?index=trueIn PDF document text
  • https://dc32066a-24b5-4e1e-a655-45093da6deb9.filesusr.com/ugd/c8683e_e195b3156e5842cea891021ff02b12ae.pdf?index=trueIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/1762/3957/files/file_youth_unemployment_in_namibia.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8891/1267/files/cisco_ise_2._3_configuration_guide.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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