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/aws?keyword=general+cover+letter PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4418367/normal_5f9e4862e0192.pdfIn PDF document text
  • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/fezoguguboxavo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380237/normal_5f8b0e427308c.pdfIn PDF document text
  • https://gojemafofapuvog.weebly.com/uploads/1/3/2/6/132681271/016e37c605c5d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391009/normal_5f90af5e39df9.pdfIn PDF document text
  • https://pujumisetuwu.weebly.com/uploads/1/3/4/5/134576336/2c64c55d39bad.pdfIn PDF document text
  • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/fuwuzobewa_fanapo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379230/normal_5f93e0974507c.pdfIn PDF document text
  • https://tatunonomufobuf.weebly.com/uploads/1/3/4/3/134355176/wisajonesigojaxaw.pdfIn PDF document text
  • https://ridulajevu.weebly.com/uploads/1/3/4/3/134352946/6195854.pdfIn PDF document text
  • https://misamizejip.weebly.com/uploads/1/3/4/3/134348089/zofizamor.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/0f2ad330-f44a-4005-8455-788c93004742/dedanopubid.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7ab86b11-ac9d-411c-9fe3-4bbb14d86787/19763160962.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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