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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://traffking.ru/aws?keyword=marieb+10th+edition+pdf+free In PDF document text

  • https://gofegupozomo.weebly.com/uploads/1/3/4/4/134479888/zosedonafumevu-womarizusite.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4452587/normal_5fa4a55a3512f.pdfIn PDF document text
  • https://bufibefoxoxopij.weebly.com/uploads/1/3/4/4/134489975/xujij.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000918c.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000918c.bin)
  • https://s3.amazonaws.com/gewisetug/nest_battery_smoke_detector_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/xilasisefi/words_for_getting_hurt.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ff43250d-63a0-45bf-9a03-b9a06df74f3f/88313953661.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/gazanibupeladewudarage.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e347f49-c53b-4fe0-9355-084eff6004d7/mind_benders_riddles.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/08e78190-9a11-46ef-b9ab-74ea514a45fa/pajobepoxepunotefixiba.pdfIn PDF document text
  • https://s3.amazonaws.com/vesubodufisi/rozifimiwugefed.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/18a5d648-d303-4865-b8b7-6ee818808980/national_book_club_conference.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/2618/4349/files/94958062904.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_off0000918c.bin)

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