Malicious PDF — malware analysis report

Heuristics 6

• 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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://traffnew.ru/123?keyword=stihl+fs100rx+owners+manual PDF link annotation

  • https://fobewesepujub.weebly.com/uploads/1/3/2/3/132303403/228d1865.pdfIn PDF document text
  • https://wizenavadabavor.weebly.com/uploads/1/3/4/5/134518239/5de3aefd0a.pdfIn PDF document text
  • https://jimagofer.weebly.com/uploads/1/3/0/8/130813953/ximiwariwisomu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387919/normal_5f90141186d16.pdfIn PDF document text
  • https://wizenavadabavor.weebly.com/uploads/1/3/4/5/In macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://sisiviweze.files.wordpress.com/2020/11/50939477702.pdfIn PDF document text
  • https://jowurijovu.files.wordpress.com/2020/11/indicadores_de_gestion_de_compras.pdfIn PDF document text
  • https://nodexedi.files.wordpress.com/2020/11/vadotifegotawoteze.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27d6edfb-4a76-4ee2-aab4-989535596457/risanu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/62ed5427-4204-4489-9af1-29260140dfb4/fancy_fonts_copy_and_paste_curl.pdfIn PDF document text
  • https://gozodusi.files.wordpress.com/2020/11/pipasogasepepudutamigopob.pdfIn macro / runtime command snippet
  • https://dufakeribeze.files.wordpress.com/2020/11/rezonamumewaveludefidax.pdfIn PDF document text
  • https://teviwuder.files.wordpress.com/2020/11/61831666420.pdfIn PDF document text
  • https://dilopipo.files.wordpress.com/2020/11/demetivudaxakoleze.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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