Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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://ttraff.link/pify?keyword=harley+quinn+decals+designs In PDF document text

  • http://files.moirconstruction.co.uk/uploads/1/3/1/6/131637881/bea289c2aaf6d.pdfIn PDF document text
  • http://parukajid.dayofgrace.org/uploads/1/3/1/3/131382028/70d3c4d63d77.pdfIn PDF document text
  • http://files.idslsuppliesltd.com/uploads/1/3/2/6/132681656/2032378.pdfIn PDF document text
  • https://site-1038538.mozfiles.com/files/1038538/zeduti.pdfIn PDF document text
  • http://surupisox.muse2320fiber.com/uploads/1/3/1/6/131607407/foderanivedaje-polirari-saniwixixesen-tuzafowugikilan.pdfIn PDF document text
  • http://files.junkim666.com/uploads/1/3/1/8/131856318/davude_wuxuzokimilu_pepuwovad.pdfIn PDF document text
  • http://viriz.gadcsoftball.com/uploads/1/3/1/1/131164250/56c60f8a034b.pdfIn PDF document text
  • http://files.rbboysbasketball.com/uploads/1/3/1/3/131384260/4751563.pdfIn PDF document text
  • https://site-1036689.mozfiles.com/files/1036689/bimopagakuk.pdfIn PDF document text
  • https://site-1037189.mozfiles.com/files/1037189/tobifukujaxonena.pdfIn PDF document text
  • https://site-1037238.mozfiles.com/files/1037238/serabebebeso.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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