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.
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://gettraff.ru/strik?keyword=sportcraft+basketball+arcade+hoops+assembly+instructions In PDF document text

  • http://files.urbanrips.com/uploads/1/3/1/4/131408250/4aa7c797a8577.pdfIn PDF document text
  • http://lexez.thefoodiepharmer.com/uploads/1/3/0/7/130739615/ropuvosuki.pdfIn PDF document text
  • http://bufurug.voodoodollbookblog.com/uploads/1/3/1/6/131636922/95b9e4a.pdfIn PDF document text
  • https://site-1040104.mozfiles.com/files/1040104/60003561946.pdfIn PDF document text
  • https://site-1038982.mozfiles.com/files/1038982/fugakaka.pdfIn PDF document text
  • https://site-1037207.mozfiles.com/files/1037207/jinibuvuvuxumo.pdfIn PDF document text
  • https://site-1042658.mozfiles.com/files/1042658/pirapepusanit.pdfIn PDF document text
  • https://site-1040576.mozfiles.com/files/1040576/sososipulibofawi.pdfIn PDF document text
  • http://files.karingholmes.net/uploads/1/3/0/7/130738921/zorupel.pdfIn PDF document text
  • http://files.stellathelight.com/uploads/1/3/1/3/131398406/1683599.pdfIn PDF document text
  • http://files.johnbgibbonslaw.com/uploads/1/3/0/8/130874667/3587251.pdfIn PDF document text
  • http://files.lenisewilliams.net/uploads/1/3/1/4/131483108/petisojodolixit_xafotetazotowi_vaganeval.pdfIn PDF document text
  • http://zinum.parsonsperiodpresentations.com/uploads/1/3/1/6/131606343/016d50.pdfIn PDF document text
  • https://site-1036826.mozfiles.com/files/1036826/90305035239.pdfIn PDF document text
  • https://site-1036862.mozfiles.com/files/1036862/1566644907.pdfIn PDF document text
  • https://site-1039131.mozfiles.com/files/1039131/27910058586.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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