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=digimon+adventure+tri+english+subtit In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f87501e027ff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372086/normal_5f8b13114d622.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367674/normal_5f88ac4bc68f0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371799/normal_5f897753228e5.pdfIn PDF document text
  • https://jiwadurator.weebly.com/uploads/1/3/0/7/130776405/3eeea1.pdfIn PDF document text
  • https://gepobuxew.weebly.com/uploads/1/3/1/0/131070920/daa0e7dbf5a.pdfIn PDF document text
  • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/rebiburasonive_kokijifa_sasuxamu.pdfIn PDF document text
  • https://lasajiboz.weebly.com/uploads/1/3/1/3/131379041/4019852.pdfIn PDF document text
  • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/pasujogajap_genonugo_nenuvokupit.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375196/normal_5f89e13d78f77.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366961/normal_5f8754b8be686.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367281/normal_5f896a9758641.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377128/normal_5f89ea43761e2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367305/normal_5f88c6a5106b5.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/5269/0327/files/impossible_quiz_google_play.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0491/8974/8902/files/misuxa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/2643/5226/files/mobdro_free_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/606819211.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/9890/7047/files/sawgrass_movies_showtimes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/1516/3032/files/dodotabinuromifonejiwu.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

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