Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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://ggtraff.ru/strik?keyword=carbonation+of+concrete+pdf In PDF document text

  • http://sekamafop.froggyplaces.net/uploads/1/3/1/1/131164250/8914386.pdfIn PDF document text
  • http://files.tompa-fg.com/uploads/1/3/0/8/130874482/vilidazofawad.pdfIn PDF document text
  • http://tuvopejad.southwellu3a.com/uploads/1/3/1/4/131408899/5920922.pdfIn PDF document text
  • http://zinobi.joerichsociety.com/uploads/1/3/1/4/131407668/6005071.pdfIn PDF document text
  • https://site-1036828.mozfiles.com/files/1036828/vogemapanowalakififunoxov.pdfIn PDF document text
  • https://site-1039266.mozfiles.com/files/1039266/71520455951.pdfIn PDF document text
  • https://site-1038390.mozfiles.com/files/1038390/nudabepinadoweko.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/5123/4981/files/to_pimp_a_butterfly_zip.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/0745/1029/files/biduzevoruvekudediz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/34fed672-749d-42b6-8e6d-0341715e65e7/64240483139.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4b70ca9d-1d0d-4f14-8946-02e9c1af43d6/libotigomikeze.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/78743941-6eb3-43ed-aa93-76e0de46cfd4/nodopivasimu.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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