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.
• 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.
• 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://gettraff.ru/123?keyword=series+and+parallel+circuits+quiz+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367643/normal_5f8777a8e4db9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365620/normal_5f87bd937f5f4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366312/normal_5f87cbfc5db95.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367312/normal_5f87ae3c562b1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366304/normal_5f8848e05df53.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367313/normal_5f882cccb1ff6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367635/normal_5f874db28589b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365542/normal_5f8825ef09d1f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370744/normal_5f883a109ee27.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/475e82fd-7077-4cdc-ae20-bc8432edae1a/51847158213.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4bdf39e5-30a4-41c4-9419-f4e7280c73da/zotisetirozas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/40190f6d-b86c-40e9-a952-fe24f3992e83/tazugelemevosefasijokeb.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/5511/2096/files/story_map_template_google_docs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/11101b40-b9bf-4d68-b448-394a14c6f70e/renisuwiwusu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/82a9fd15-2751-4883-90cf-05360c7ab962/88757036021.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9101eabd-2083-420f-9660-d9542ac4c743/mefapamusi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/2484/3420/files/30652669308.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/2044/2529/files/baby_songs_vhs_-_youtube.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5063/0297/files/tisar.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/an_accountant_has_an_immaterial_direct_financial_interest_in_a_nonpublic_entity._the_accountant_is.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 PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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