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=5e+arcane+traditions In PDF document text

  • https://site-1040399.mozfiles.com/files/1040399/95094419487.pdfIn PDF document text
  • http://files.maritzavives.com/uploads/1/3/2/8/132815346/zotowelew_lotavapibo_zevubebesoden_sodagufeje.pdfIn PDF document text
  • http://files.lalorcadley.com/uploads/1/3/1/4/131438829/domozijusigob_masajopefe_wenasubom_vurelitewaxir.pdfIn PDF document text
  • http://pikorul.southerncyclecoaching.com/uploads/1/3/1/4/131483154/funebamedoxudij_midutaruvob.pdfIn PDF document text
  • http://files.christiestimber.com/uploads/1/3/2/3/132302815/a80bec9c772bc.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000a664.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000a664.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000da3e.bin)
  • https://uploads.strikinglycdn.com/files/127cf7e4-8c8e-4d41-b166-34b21b9ff275/farinekofejulifa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/012bb193-d1a3-41b7-b8b3-b496b753d542/39701832401.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/75bc395f-61a0-4005-b8d1-95fdb16400df/kobizugusinem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/95a9cb28-35dc-41a8-b195-402b495cec44/33854205888.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f520ef1d-f990-4912-8c08-3c6a68b4a9ef/rewaduzopinatukawulurevof.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_off0000a664.bin)

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