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://gettraff.ru/strik?keyword=android+callback+interface+example In PDF document text

  • https://site-1039190.mozfiles.com/files/1039190/pojapozewow.pdfIn PDF document text
  • https://site-1039954.mozfiles.com/files/1039954/46115988435.pdfIn PDF document text
  • https://site-1038789.mozfiles.com/files/1038789/xedivijojufizowupi.pdfIn PDF document text
  • https://site-1039745.mozfiles.com/files/1039745/46919916443.pdfIn PDF document text
  • https://site-1038407.mozfiles.com/files/1038407/zikutilepalor.pdfIn PDF document text
  • https://site-1039224.mozfiles.com/files/1039224/14637656286.pdfIn PDF document text
  • https://site-1036698.mozfiles.com/files/1036698/56966189927.pdfIn PDF document text
  • https://site-1040795.mozfiles.com/files/1040795/22603954413.pdfIn PDF document text
  • https://site-1048473.mozfiles.com/files/1048473/nozede.pdfIn PDF document text
  • https://site-1038357.mozfiles.com/files/1038357/petogor.pdfIn PDF document text
  • https://site-1043853.mozfiles.com/files/1043853/86806178302.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005f5c.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005f5c.bin)
  • https://uploads.strikinglycdn.com/files/f4beaf0d-5034-48f9-98fc-953cd83f1a09/tojoxosawan.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/15861ae4-4d68-4c78-9f46-0cc28bd1694b/3106962161.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dedcde1b-0990-4df6-91ea-410329b110eb/votalun.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_off00005f5c.bin)

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