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 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.
• 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://cctraff.ru/123?keyword=administrative+assistant+and+secretary+handbook+pdf In PDF document text

  • https://gejovekozeja.weebly.com/uploads/1/3/4/4/134401956/482a3.pdfIn PDF document text
  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/xelikanotuzifaja.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370073/normal_5f8896c3a2687.pdfIn PDF document text
  • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/4289094.pdfIn PDF document text
  • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/tugokeg.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369487/normal_5f887aa3a83a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372100/normal_5f8bd182f365c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367305/normal_5f89551948831.pdfIn PDF document text
  • https://zulatikuwa.weebly.com/uploads/1/3/0/7/130776211/namozofe-mokedupuzujemag-rapazuxig-gemolidade.pdfIn PDF document text
  • https://varavedonenen.weebly.com/uploads/1/3/4/3/134316352/a87c2.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000098eb.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000098eb.bin)
  • https://s3.amazonaws.com/fasanag/catering_assistant_job_description.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/11065635-2ff4-4fe0-ade4-b9340fc8d050/43765723494.pdfIn PDF document text
  • https://s3.amazonaws.com/biwubeleba/benzimidazoles_mecanismo_de_accion.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 extracted file (font_00_sfnt_off000098eb.bin)

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