Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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+does+big+chip+on+your+shoulder+mean In PDF document text

  • https://cdn-cms.f-static.net/uploads/4457582/normal_5fd67c7fe7006.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375690/normal_60255f6b219c1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410000/normal_601774125461a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383802/normal_6038154012eee.pdfIn PDF document text
  • https://fozikubovofow.weebly.com/uploads/1/3/4/8/134897471/e8ad65.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4374360/normal_5fe556f127151.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4502439/normal_605ae0e689738.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4456728/normal_600de67cae4e8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368953/normal_602aef1468860.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4471234/normal_60120b2356d97.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4450340/normal_5ff53a4101d4b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377371/normal_60206749591a3.pdfIn PDF document text
  • https://jodawebodo.weebly.com/uploads/1/3/4/6/134634345/d61880878.pdfIn PDF document text
  • https://famepakemujo.weebly.com/uploads/1/3/2/7/132740594/pagamixufupa.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4383797/normal_5ffeb75995bf5.pdfIn PDF document text
  • https://basitonivi.weebly.com/uploads/1/3/4/5/134584834/7158168.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4455396/normal_5fe1c81284089.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4478926/normal_601265696d5b8.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/1b0d7bb5-4703-4425-ac87-7abed7740c71/difidupupojorir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6646c1aa-a27b-455a-9a5e-92049f158564/zakud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/90af16b5-af1e-4cd5-9c90-6a2bc9270984/porque_se_celebra_el_da_de_la_constitucin_mexicana.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1c153022-0c9a-495f-be8b-b0e6dc51e0f7/50478261424.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/028cb6d5-58f7-471e-bdbe-10e34bf33e81/fekokorulazuwipozerojanu.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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