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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
  Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
• 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=ntoskrnl.+exe+driver In PDF document text

  • https://site-1043873.mozfiles.com/files/1043873/89878330761.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000060aa.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000060aa.bin)
  • https://uploads.strikinglycdn.com/files/cea247c8-a61d-4130-9fad-6b32544428d9/52928505095.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d7504858-dc7b-4ba0-af37-8b27556e309b/jageg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/37192a38-7f9c-45f4-81ff-3ad4ea9ffbf2/66891123494.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/137c547d-d727-4c55-af62-529d3d3a0bc8/74172031302.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dd9e3986-4745-423f-bf10-b91618b45470/34192381238.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d88243c8-c375-48dc-9e9d-db241cdc34d5/33465833382.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f40a5942-d4a2-49af-80d8-672b8fd627b5/5120537321.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/635d4dc1-4d0d-4322-8f08-ac23f2516844/sezidixelojosufilezuz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/846ed7b9-3411-4165-8634-f71df534a6e7/luruxi.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_off000060aa.bin)

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