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://ttraff.ru/123?keyword=video+porteiro+predios In PDF document text

  • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/735455.pdfIn PDF document text
  • https://savakorudefipe.weebly.com/uploads/1/3/2/3/132303238/pokiro-turuliwivole.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393511/normal_5f97ba029f80b.pdfIn PDF document text
  • https://rosuxemu.weebly.com/uploads/1/3/0/7/130776582/2112a7f86a4af.pdfIn PDF document text
  • https://sojejizewo.weebly.com/uploads/1/3/4/4/134460985/nizupumopug-pawapolivuke-delem-ziked.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4426410/normal_5f9b8edef1188.pdfIn PDF document text
  • https://sexutenevasasi.weebly.com/uploads/1/3/4/3/134306733/9345407.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368501/normal_5f87b99555f2b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413573/normal_5f962c0d1afed.pdfIn PDF document text
  • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/47de143969989c.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005562.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005562.bin)
  • https://uploads.strikinglycdn.com/files/75dfd3b8-25d0-4125-a546-8a2dfd6e9de1/google_fi_referral_program.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/681d1954-aaeb-4787-a1b2-cb319bdcf3e7/xirivedikab.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2161ebfa-62a3-4999-97ae-1b78d4052b06/88652936123.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 extracted file (font_00_sfnt_off00005562.bin)

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