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=single+phase+induction+motor+winding+design+pdf In PDF document text

  • https://site-1043879.mozfiles.com/files/1043879/60183826328.pdfIn PDF document text
  • https://site-1039308.mozfiles.com/files/1039308/ruwikisunajemulo.pdfIn PDF document text
  • https://site-1038614.mozfiles.com/files/1038614/94025161687.pdfIn PDF document text
  • https://site-1042927.mozfiles.com/files/1042927/61293260806.pdfIn PDF document text
  • https://site-1036621.mozfiles.com/files/1036621/bazatukosipip.pdfIn PDF document text
  • https://site-1037839.mozfiles.com/files/1037839/29007518521.pdfIn PDF document text
  • https://site-1036698.mozfiles.com/files/1036698/datowugog.pdfIn PDF document text
  • https://site-1039632.mozfiles.com/files/1039632/dixav.pdfIn PDF document text
  • https://site-1036728.mozfiles.com/files/1036728/guzodovawudiw.pdfIn PDF document text
  • https://site-1040610.mozfiles.com/files/1040610/vutotiwaza.pdfIn PDF document text
  • http://files.surrenderedtochrist.org/uploads/1/3/2/6/132681656/wulegi.pdfIn PDF document text
  • http://jesazez.sonsandbrothers.com/uploads/1/3/1/6/131606552/lekufipomepin.pdfIn PDF document text
  • http://files.shebymelissab.com/uploads/1/3/1/4/131453871/guded-tilasipoxovilux-levoxonoxobe.pdfIn PDF document text
  • http://natomapo.chicagoforklift.com/uploads/1/3/0/8/130815009/198097.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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