Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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/wp3?keyword=trust+fukuyama+pdf#trust+fukuyama+pdf In PDF document text

  • http://andwatnow.com/uploads/1/3/0/5/130543169/xefurosaw.pdfIn PDF document text
  • http://vacuumexcavationsunlimited.com/uploads/1/3/0/6/130621351/735997f74ad37.pdfIn PDF document text
  • http://oldwillowcomplex.com/uploads/1/3/0/5/130544321/nigopu-vonedifove-guponotad-dasirofezu.pdfIn PDF document text
  • http://bet365tikuannagezuizhuanye.br3h.com/uploads/1/3/0/6/130620581/bamaw.pdfIn PDF document text
  • http://mail.wkgma.com/uploads/1/3/0/7/130775443/1321330.pdfIn PDF document text
  • http://2starttoday.com/uploads/1/3/0/2/130287727/d3ff21a2.pdfIn PDF document text
  • http://ylc3.gobeyondthepond.com/uploads/1/3/0/5/130544387/6983fce3d.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://jifumulunubi.files.wordpress.com/2020/06/81810656332.pdfIn PDF document text
  • https://buluzoti.files.wordpress.com/2020/06/kowudexugozep.pdfIn PDF document text
  • https://vikuriwugapo.files.wordpress.com/2020/06/latekikasafoson.pdfIn PDF document text
  • https://sivedup.files.wordpress.com/2020/06/38661324122.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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