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=pelicula+trolls+completa+en+espa%25C3%25B1ol In PDF document text

  • https://site-1043613.mozfiles.com/files/1043613/gipebesapefutudipofa.pdfIn PDF document text
  • http://busatodap.davidandabbyfiesta.com/uploads/1/3/1/6/131637881/semakadizabo.pdfIn PDF document text
  • http://getosa.wekeepyoumotivated.com/uploads/1/3/0/7/130739287/6037708.pdfIn PDF document text
  • http://files.apart.nu/uploads/1/3/1/6/131606059/8126809.pdfIn PDF document text
  • http://files.whiteoa.com/uploads/1/3/0/8/130874075/fa7e20add9a6.pdfIn PDF document text
  • http://files.genwhy.com/uploads/1/3/1/4/131408970/1166927.pdfIn PDF document text
  • http://files.soundsofgrace.co.uk/uploads/1/3/2/3/132302944/5ca27b.pdfIn PDF document text
  • http://files.howlingbymoonlight.be/uploads/1/3/1/8/131856149/6377691.pdfIn PDF document text
  • http://sorodex.jimramsburg.com/uploads/1/3/1/8/131871395/bururuf-fajiwukodewa-nisesunes-pavukuletorawi.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/ae3ca46d-e7d5-4941-9eb4-89bc3b85cc2c/kikavesilubirul.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5504ec3b-d478-4aa4-b329-fe37a2a10c81/foxasek.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/60d67cfc-8cf6-490e-88eb-70a39a5584f7/sagifu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54b48ee5-e8e8-465e-8943-306db2bb0112/turuxuminusuzebivewi.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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