Malicious PDF — malware analysis report

Heuristics 5

• 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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://yafferge.ru/strik?utm_term=actividades+para+segundo+grado+de+primaria+pdf In PDF document text

  • https://wipibafupegivu.weebly.com/uploads/1/3/4/8/134868488/buxopukuxijejoz-sakib.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393752/normal_601f2264e2a17.pdfIn PDF document text
  • https://xikunamoveg.weebly.com/uploads/1/3/4/5/134596382/wesefo_wodelivifo.pdfIn PDF document text
  • https://fidexirubopuzer.weebly.com/uploads/1/3/2/8/132815065/3573224.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414869/normal_60568ef15f0f9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4450864/normal_6064bbe216504.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4490917/normal_604d725ca7096.pdfIn PDF document text
  • https://fukimeremunosav.weebly.com/uploads/1/3/1/3/131379236/muxogakozoguj-lotawini-tarakoxirifum.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383921/normal_60667db4cc5f2.pdfIn PDF document text
  • https://raponomipa.weebly.com/uploads/1/3/2/6/132681826/dagiso.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408879/normal_6021001dcd489.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4451753/normal_601924e7298cd.pdfIn PDF document text
  • https://jupedozezuwobig.weebly.com/uploads/1/3/4/0/134040413/6ece9d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379221/normal_6048de12a907d.pdfIn PDF document text
  • https://velumosatowe.weebly.com/uploads/1/3/4/8/134883763/nenave.pdfIn PDF document text
  • https://lekumoga.weebly.com/uploads/1/3/2/6/132683130/5520320.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4403531/normal_5ff28e78a0a37.pdfIn PDF document text
  • https://zamivevi.weebly.com/uploads/1/3/1/4/131437513/4686893.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/8caedb20-5959-4ec9-ba59-9c5ae96aac39/libro_cual_camino_descargar_gratis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9f53a4ab-6aed-4afb-b78a-af30d61a9fb7/cisco_ip_303_checking_dns.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/06ad3aa5-0bc5-492a-a69b-931c7894fec2/jelaxo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/53332a47-ef33-4b0c-af2d-fc2c4741048e/how_can_i_check_the_status_of_my_drivers_license.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1707da0e-e639-4e01-8fb3-33e8e2029c3e/oleanna_play.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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