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=identifier+un+signal+et+une+information+6%25C3%25A8me In PDF document text

  • http://files.mahomdub.com/uploads/1/3/0/8/130874359/85d5c2.pdfIn PDF document text
  • http://files.sacredfireacupuncture.com/uploads/1/3/2/6/132695244/3696619.pdfIn PDF document text
  • http://sotose.barcelonaplanetfilmfestival.com/uploads/1/3/0/9/130969422/820f8cd0db.pdfIn PDF document text
  • https://site-1038815.mozfiles.com/files/1038815/wikadizofimagof.pdfIn PDF document text
  • https://site-1043160.mozfiles.com/files/1043160/40919191626.pdfIn PDF document text
  • https://site-1043176.mozfiles.com/files/1043176/lupodeteweboxizemulivurez.pdfIn PDF document text
  • http://files.perfectlypixelesque.com/uploads/1/3/1/6/131606798/a0d2389971be451.pdfIn PDF document text
  • http://gerezo.eranthelaw.com/uploads/1/3/0/8/130874493/716d3c4427.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6499/1649/files/utica_zip_code_address.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0465/8069/5207/files/4761080879.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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