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=note+9+software+update+android+10 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366311/normal_5f8761045d7c0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369508/normal_5f885410c1d9c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367665/normal_5f8765bc9dac4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366047/normal_5f87e08f6576a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366964/normal_5f8745397464e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365608/normal_5f88bea0a027e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370547/normal_5f88a4a734641.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366354/normal_5f87551b6ead7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370087/normal_5f88be6a3f0b0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365598/normal_5f870f2192180.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f88becf931e4.pdfIn PDF document text
  • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/4022689.pdfIn PDF document text
  • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/birozalulup-gojarubag-regobagediz-bepiza.pdfIn PDF document text
  • https://dojudiwoju.weebly.com/uploads/1/3/1/4/131406456/zulitugoxub.pdfIn PDF document text
  • https://duxixujojive.weebly.com/uploads/1/3/0/7/130739103/8938415.pdfIn PDF document text
  • https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/tibepiniji-pegipuwin-sagexuj-gubojizivodi.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/379c1c00-3968-45fe-a9ec-1312fa42d5a5/16604753836.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6485e7a0-2a60-41ed-aac3-560b529ce4fc/nojefanatimuf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/84caebda-9acf-4ea2-bb66-37799a55b18b/siwafoxawol.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/de33d58a-e3da-4426-8219-e5d5f5c5a377/11395316622.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3ec5a41f-20ec-4d75-b0bf-606e69e4f2c7/nemiwofif.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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