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=dsr+2020+electrical+pdf+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368752/normal_5f88d6e3c9783.pdfIn PDF document text
  • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/9173172.pdfIn PDF document text
  • https://xipunozelizu.weebly.com/uploads/1/3/1/3/131382486/bfdba3fd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366405/normal_5f873d27c410f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369165/normal_5f880e289b1c6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369507/normal_5f884d391d9aa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368505/normal_5f88d14f7c694.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372399/normal_5f8886c832f6b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369914/normal_5f88fcafbf72a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369773/normal_5f88cb4b199dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366627/normal_5f87c35c5b299.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365586/normal_5f871579c945d.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/8be5d1b9-d07b-4b3c-bf34-7b7e51957950/61745385885.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b07c205-6062-4ee4-a64b-fb060fe18195/vamukiwikezexugodotesari.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/320b9a1b-6029-4fef-8843-3cc09acab212/19441562016.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3464da02-a12b-47b0-9dac-982be8354c37/72610354080.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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