Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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
• External URI info PDF_URI
  PDF contains an external URL action
• 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://baarspo.ru/wix?keyword=ecosystem+worksheets+5th+grade PDF link annotation

  • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/5010833.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4471256/normal_6021a2a04c3b0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4486537/normal_5fd31a6d13573.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4444869/normal_600a5a98adad1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4445531/normal_601df73912d1a.pdfIn PDF document text
  • https://fakebomazeb.weebly.com/uploads/1/3/1/4/131453402/nimot.pdfIn PDF document text
  • https://subilitukufune.weebly.com/uploads/1/3/4/6/134629352/nazupitoleno_kepavip_xeniximeperal_kixiluliwikavam.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401518/normal_5fdbc3bb5009d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388157/normal_601ef64b018ea.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4485821/normal_5fdfd5473eaa3.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/gazijewevan/vasovaxedemafovidakeva.pdfIn PDF document text
  • https://s3.amazonaws.com/lofese/9500360479.pdfIn PDF document text
  • https://s3.amazonaws.com/zerejibixupav/44022626700.pdfIn PDF document text
  • https://s3.amazonaws.com/kavifunaruvi/economic_impact_of_globalization.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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