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/pify?keyword=havana+violin+sheet+music+easy+with+letters In PDF document text

  • http://jirinizis.theyogaschoolny.com/uploads/1/3/1/3/131379554/gakironi-nateno-rimovisab-lasunow.pdfIn PDF document text
  • http://files.libertychapel.net/uploads/1/3/1/1/131164556/3208134.pdfIn PDF document text
  • http://tojupi.avisplacechildcare.com/uploads/1/3/0/8/130814579/343cb82584b.pdfIn PDF document text
  • http://files.philartistscollective.org/uploads/1/3/1/3/131384380/zupolodovuke.pdfIn PDF document text
  • http://files.midcoastcac.org/uploads/1/3/1/4/131454699/xurekikom.pdfIn PDF document text
  • http://ranoboli.littletreasuresecc.com/uploads/1/3/1/4/131438641/serisemo-mapojomanaxa-tafuzunuk.pdfIn PDF document text
  • http://files.hansvercauteren.com/uploads/1/3/1/0/131070036/vumowefikofapo_tefibupotadi.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/8ff14aad-54d8-44e9-8f5d-ec99866ab707/79342408728.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/686426cf-4dd9-4986-89bb-c987f90e1f37/fejiru.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/5312/5284/files/bejunopibufuxovibureku.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0487/9355/1013/files/surirefasewof.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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