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://ggtraff.ru/strik?keyword=%25C3%25A7o%25C3%25A7uk+%25C5%259Fark%25C4%25B1lar%25C4%25B1+s%25C3%25B6zleri+ve+notalar%25C4%25B1 In PDF document text

  • http://numafid.annitaverner.com/uploads/1/3/0/7/130740146/19839.pdfIn PDF document text
  • http://files.michellebrownbooks.com/uploads/1/3/1/4/131406344/6cf4cf.pdfIn PDF document text
  • http://files.upstagingdesign.com/uploads/1/3/1/4/131453967/lodixevu.pdfIn PDF document text
  • https://site-1036656.mozfiles.com/files/1036656/78837106221.pdfIn PDF document text
  • https://site-1038572.mozfiles.com/files/1038572/5437079486.pdfIn PDF document text
  • https://site-1039995.mozfiles.com/files/1039995/53197891376.pdfIn PDF document text
  • https://site-1036991.mozfiles.com/files/1036991/zopujobanuwizorofaxebogo.pdfIn PDF document text
  • https://site-1037122.mozfiles.com/files/1037122/netefutinutofufisunotaziv.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/b5e1cde0-601b-4f76-ba7b-0f4a76ba9b47/24842303747.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb057d72-97f2-4bc4-9333-d0b86345fcab/10279751473.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/97fb5b19-e91f-45cd-8ca7-4d73fde74eac/25058425699.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c4eafd88-add5-47c7-8618-6d8b87546f37/38883233538.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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