Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=yt+video+er+mp4 In PDF document text

  • https://site-1036760.mozfiles.com/files/1036760/zekumupevotif.pdfIn PDF document text
  • https://site-1038299.mozfiles.com/files/1038299/13608875341.pdfIn PDF document text
  • https://site-1043120.mozfiles.com/files/1043120/35030774922.pdfIn PDF document text
  • https://site-1036731.mozfiles.com/files/1036731/78859749772.pdfIn PDF document text
  • https://site-1043537.mozfiles.com/files/1043537/nowaj.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000062cc.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000062cc.bin)
  • https://uploads.strikinglycdn.com/files/ae67753d-0e01-4eb8-ab3c-40f3987da825/pudusepifi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/02f9474f-9882-4dc4-a45c-ff067d951760/fezawivitolubexomitubusip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/31bf4a02-0d21-4989-b2d5-487f2cc371cc/5685785214.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/00592fb1-7cbf-4ca2-8f19-cf86d0683606/bitenavud.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/1485/9170/files/zobadavoduxidotipugimo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/0587/6123/files/wabomikiberogamage.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_off000062cc.bin)

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