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://cctraff.ru/strik?keyword=manuale+diritto+commerciale In PDF document text

  • https://site-1036911.mozfiles.com/files/1036911/24231968491.pdfIn PDF document text
  • https://site-1037178.mozfiles.com/files/1037178/99401882024.pdfIn PDF document text
  • https://site-1038780.mozfiles.com/files/1038780/49243623854.pdfIn PDF document text
  • http://gokumepa.nwlearningandgrowth.com/uploads/1/3/2/6/132683188/4230083.pdfIn PDF document text
  • http://files.i-roq.org/uploads/1/3/0/9/130969717/38c16edf8d0.pdfIn PDF document text
  • https://site-1040516.mozfiles.com/files/1040516/zotasesa.pdfIn PDF document text
  • https://site-1040513.mozfiles.com/files/1040513/46046818048.pdfIn PDF document text
  • https://site-1039754.mozfiles.com/files/1039754/2460212976.pdfIn PDF document text
  • https://site-1040982.mozfiles.com/files/1040982/xidejizezagarizoxurukexa.pdfIn PDF document text
  • https://site-1036993.mozfiles.com/files/1036993/kizefabefizexunufaxaguda.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://uploads.strikinglycdn.com/files/c80308a7-a7b8-4a94-acee-8915e7851bcb/95775311649.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6b73e5d7-9cc5-4da5-8af7-0b31a76b3c33/81830433072.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/000789ab-7bae-44c1-b3f5-7610745f215d/87563750523.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/99172c80-8ffd-40fd-8d51-c92a9ed30822/tafawojilogoserolapota.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/351a7c1f-b7d8-44d4-9072-8cd1ce7648a7/ralavejexe.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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