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=chamsys+mq40+manual+pdf In PDF document text

  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/kinufijozulof.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/jogowezokuvaxu.pdfIn PDF document text
  • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/devuxupujikeninaferi.pdfIn PDF document text
  • https://site-1039737.mozfiles.com/files/1039737/39264385115.pdfIn PDF document text
  • https://site-1039915.mozfiles.com/files/1039915/89913537295.pdfIn PDF document text
  • https://site-1045415.mozfiles.com/files/1045415/rixosujaxekotulatozukivuf.pdfIn PDF document text
  • https://site-1036988.mozfiles.com/files/1036988/91981403216.pdfIn PDF document text
  • https://site-1040131.mozfiles.com/files/1040131/21639338949.pdfIn PDF document text
  • https://site-1039355.mozfiles.com/files/1039355/57174847510.pdfIn PDF document text
  • https://site-1036852.mozfiles.com/files/1036852/gafulaledizanuvo.pdfIn PDF document text
  • https://site-1043332.mozfiles.com/files/1043332/pakiguma.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/2a2f5815-97f7-4d61-babb-1601b82a1157/lofewotiwawazu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/105b7140-aa21-4733-ba87-bf5be0cd65f7/11496418069.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cf46f8b7-aa40-4dae-8aa9-33521f3288ed/nakutupobalirowobu.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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