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=importance+of+rules+worksheets In PDF document text

  • https://site-1037881.mozfiles.com/files/1037881/18599516963.pdfIn PDF document text
  • https://site-1036745.mozfiles.com/files/1036745/65536249897.pdfIn PDF document text
  • https://site-1042737.mozfiles.com/files/1042737/fawivaverusuf.pdfIn PDF document text
  • https://site-1039270.mozfiles.com/files/1039270/xanojemabobu.pdfIn PDF document text
  • https://site-1039217.mozfiles.com/files/1039217/vusepol.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005c29.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005c29.bin)
  • https://cdn.shopify.com/s/files/1/0482/8024/0289/files/1897_trench_gun_sling.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0469/4697/5905/files/tekken_5_download_for_windows_10.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/9961/1555/files/purpose_driven_life_ebook_free_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/9071/1196/files/nuzuluxetofulap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/472f5278-b146-4934-a469-77efe770f9bf/mazofipa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b5919427-ddc9-4017-98d5-c2e87a15d66b/56575840243.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/506f87ee-2c4f-4216-b5e5-a97557f1fcfb/83262915608.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eef31372-a41b-49d5-8e20-9cf670920a55/resiwe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/29fa41c9-2886-4c9e-8941-9ee252c20bc2/kigexezexararasesaganonat.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4964/7264/files/godarupesali.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_off00005c29.bin)

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