Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://crophysi.ru/strik?utm_term=what+is+the+ugliest+bird+on+earth In PDF document text

  • https://vejilete.weebly.com/uploads/1/3/5/3/135312445/bf17f.pdfIn PDF document text
  • https://vomerigovelaj.weebly.com/uploads/1/3/4/9/134901888/4247299.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4427538/normal_5fe48e4b380b9.pdfIn PDF document text
  • https://bevotiwi.weebly.com/uploads/1/3/1/4/131437753/6344760.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4457305/normal_60250fbf41376.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4485943/normal_5ffa22f4b0f40.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367617/normal_602a7e1c3e96a.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4416299/normal_5fe5b79ad7644.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4411916/normal_5fe08b0df0155.pdfIn PDF document text
  • https://cdn.sqhk.co/vemosoveveb/eDicjfv/37663204995.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4391024/normal_5fcc08bd3c109.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4422890/normal_5ff337ca8b4be.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4380214/normal_5fefe69fe16e6.pdfIn PDF document text
  • https://wowavimisaken.weebly.com/uploads/1/3/0/8/130814021/a6c84cf4.pdfIn PDF document text
  • https://cdn.sqhk.co/tijatabov/cgQfmii/zombie_shooter_gun_target_mod_apk_android_1.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4403938/normal_5ff56b08b580c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4495846/normal_601957012d7d1.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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