Malicious PDF — malware analysis report

Heuristics 4

• 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 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://cctraff.ru/strik?keyword=maths+tricks+book+in+hindi+pdf+free+download In PDF document text

  • http://files.unitedtubepackaging.com/uploads/1/3/0/7/130775471/9ef964872.pdfIn PDF document text
  • http://files.smplyjohn.com/uploads/1/3/0/7/130740419/xunominama.pdfIn PDF document text
  • http://files.valleycycles.co.uk/uploads/1/3/0/7/130738998/belonu_rodagigofa_povivewatozab_zepunodidopipiz.pdfIn PDF document text
  • http://files.cabaretatstudiob.com/uploads/1/3/1/4/131407227/5d0d5aa.pdfIn PDF document text
  • http://files.grace413.com/uploads/1/3/0/7/130775373/98438.pdfIn PDF document text
  • https://site-1036840.mozfiles.com/files/1036840/3236999480.pdfIn PDF document text
  • https://site-1037044.mozfiles.com/files/1037044/sezusidivexodamaw.pdfIn PDF document text
  • http://nevumafim.spencerandsarahphotography.com/uploads/1/3/1/0/131069766/wivepali_nanidejagivo_genomo_kabaluno.pdfIn PDF document text
  • http://files.sb10fitness.com/uploads/1/3/2/7/132740362/mofedefegifolusatoz.pdfIn PDF document text
  • http://sovip.sodatherapy.com/uploads/1/3/1/4/131438729/3816b21e5144.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/76b3a6a3-81cf-41bd-8e12-a4289f521a06/97678362891.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/775dea5c-6e27-42e9-8699-ae426cf62c6d/37268311416.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/20548e32-6b43-41e7-8366-03bd0c93062f/bajivuwigudopunusaje.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1160549a-c014-42b1-a818-47b1d8daff0e/8942934551.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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