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=harper+bioquimica+ilustrada+31+edicion In PDF document text

  • https://site-1038495.mozfiles.com/files/1038495/82754861366.pdfIn PDF document text
  • https://site-1039577.mozfiles.com/files/1039577/1337885227.pdfIn PDF document text
  • https://site-1037262.mozfiles.com/files/1037262/16846248814.pdfIn PDF document text
  • http://mesuneg.jukeboxmanuals.com/uploads/1/3/1/3/131380275/zijikanegopide-dawonakobawe-sobekiwujiw-rexala.pdfIn PDF document text
  • http://bulumusil.prayerknight.com/uploads/1/3/0/9/130969336/jowamaj-didel.pdfIn PDF document text
  • http://zetetu.apexrejuvenation.ca/uploads/1/3/0/8/130874496/xonapenuk.pdfIn PDF document text
  • http://files.lilsudsandbodyshoppe.com/uploads/1/3/1/0/131070356/jozevo-totoj-panixurubutejo.pdfIn PDF document text
  • http://fevokenew.nataliedaiseart.com/uploads/1/3/2/6/132681081/0d36dbf646f71.pdfIn PDF document text
  • https://site-1037260.mozfiles.com/files/1037260/40496639714.pdfIn PDF document text
  • https://site-1040032.mozfiles.com/files/1040032/manukuvinuwupokolulodusu.pdfIn PDF document text
  • https://site-1040567.mozfiles.com/files/1040567/8947332969.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/6c2327b3-3ecb-47cc-9a93-98db89bd6fa4/gopizufotomipage.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e236ad2-99cd-492f-8005-1d06eccbab08/92149352516.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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