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.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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.
• 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=zac+efron+ted+bundy+movie+download In PDF document text

  • https://site-1037227.mozfiles.com/files/1037227/papede.pdfIn PDF document text
  • https://site-1039777.mozfiles.com/files/1039777/49627394559.pdfIn PDF document text
  • https://site-1039883.mozfiles.com/files/1039883/20861010394.pdfIn PDF document text
  • https://site-1036858.mozfiles.com/files/1036858/54443832129.pdfIn PDF document text
  • https://site-1040898.mozfiles.com/files/1040898/jibisup.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006531.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006531.bin)
  • https://uploads.strikinglycdn.com/files/00c61e39-0009-4051-91cb-37669299dfef/26890340588.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c012d7c8-bf41-4e26-8d83-751efcf96d4f/kosekikifojakoti.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e9ea77a1-498d-4658-9041-5b1124d1dadd/sobot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b9780e9-c414-440f-935e-893015ae2370/79984206309.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f89263aa-b93e-40df-bd37-beca7c5f958c/9266312285.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/64688991442.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/9778/0127/files/kelunovabibuzab.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/6893/2767/files/fufowiloreb.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0703/9912/files/tevebif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/80df8158-cbd9-48a8-92c8-d247e44ba38f/1859353703.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa47afaf-7063-4127-b592-84cacd111093/3955907055.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_off00006531.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_03_sfnt_off0000ab0c.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off0000ab0c.bin)

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