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://traffking.ru/123?keyword=dst+format+embroidery+software In PDF document text

  • https://nixawajumumija.weebly.com/uploads/1/3/4/3/134338940/zuzena.pdfIn PDF document text
  • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/2841583.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374682/normal_5f95f44e13f00.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366397/normal_5f8db10dc1767.pdfIn PDF document text
  • https://munujagafunudo.weebly.com/uploads/1/3/0/8/130873736/5078967.pdfIn PDF document text
  • https://zadujemerumid.weebly.com/uploads/1/3/2/6/132695269/4342751.pdfIn PDF document text
  • https://sazunanul.weebly.com/uploads/1/3/4/4/134488017/3134521.pdfIn PDF document text
  • https://porelananov.weebly.com/uploads/1/3/0/7/130775759/zedazamirube.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/29cb72d6-f528-415a-89ee-0f281c91e2b0/95410060911.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9861970c-8d5e-4ee4-b5d8-2b39b5dc8c91/mckelvie_intermediate_school.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2763e7bf-0c20-4654-a8ca-cb7c6c42677d/susidogo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/05d309f3-7c17-4ef2-94be-0ded49e59746/detezoja.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/49555212-d1e1-455a-935c-87ce06b26b65/67111914764.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1bdf8f68-82c3-4be8-9c23-98226c091c8a/blood_worksheet_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/58252c4c-85ab-4931-a2de-924e4abfd82f/75549539266.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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