Malicious PDF — malware analysis report

Heuristics 5

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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://trafficel.ru/123?keyword=elaeagnus+angustifolia+for+sale PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4385887/normal_5f8d189517328.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389823/normal_5f8de17d28a65.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377100/normal_5f9897fb0d450.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366952/normal_5f9bb410223a1.pdfIn PDF document text
  • https://namunobuwuper.weebly.com/uploads/1/3/0/7/130776476/108d423a893.pdfIn PDF document text
  • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/vokixojisitos.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4448746/normal_5fa198f2b6809.pdfIn PDF document text
  • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/jekowis_fuvonobux.pdfIn PDF document text
  • https://buxiniti.weebly.com/uploads/1/3/4/3/134309366/d0d3e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369191/normal_5f895751eb519.pdfIn PDF document text
  • https://bedakowunuva.weebly.com/uploads/1/3/4/3/134342711/gogilokexigid_logig.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://s3.amazonaws.com/tadovu/toefl_ibt_practice_test.pdfIn PDF document text
  • https://s3.amazonaws.com/tofizo/alternate_segment_theorem_proof.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5e598ccd-25ca-4022-92ca-aa8ed2ba78fe/audi_rs5_sportback_price.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/jidiwalonikuxuposewutav.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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