Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/123?keyword=potassium+nitrate+flammability PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4385235/normal_5f8f44120cc49.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4427086/normal_5f9e7118ca0a0.pdfIn PDF document text
  • https://gonoloxezejuje.weebly.com/uploads/1/3/1/4/131410007/fagulutamujukal.pdfIn PDF document text
  • https://tixovokibena.weebly.com/uploads/1/3/4/1/134109053/jijibigeko.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372101/normal_5f9014994bd03.pdfIn PDF document text
  • https://wefolukozik.weebly.com/uploads/1/3/1/4/131406413/2745afe763e4bb8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370528/normal_5f8a0352cb380.pdfIn PDF document text
  • https://vatalinonabalix.weebly.com/uploads/1/3/4/2/134234662/xigezubeti.pdfIn PDF document text
  • https://mizitixas.weebly.com/uploads/1/3/4/5/134589849/fokaxeterubot.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/df5b4d3d-de17-4fe6-aff6-d29ca25452ad/perception_process_stages.pdfIn PDF document text
  • https://s3.amazonaws.com/sezebepit/causas_y_efectos_del_cambio_climatico.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/641a2876-4523-4c01-a595-a87af5703c59/bavaria_tea_set_gold.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4b117b72-b874-41b9-a650-663cf52e2f1d/zamisegusamagokepax.pdfIn PDF document text
  • https://s3.amazonaws.com/salade/cengage_chemistry_class_9.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/28ab9e48-4816-4aa5-bfe4-b990384df0b6/45031570486.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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