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
• 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.
• 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://jottigo.ru/wix?keyword=cpm+cc+algebra+chapter+4+answers PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4427094/normal_5ff21e0379118.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4457620/normal_5ffdf0ca0e72a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4463034/normal_602f2dc2e38f9.pdfIn PDF document text
  • http://interstart.online/mawilurinekuvibejoririgif91k1.pdfIn PDF document text
  • http://vovpomnim.ru/programma_free_per_scrivere_su_fileribvz.pdfIn PDF document text
  • http://delaem-sami.online/how_many_chapters_in_berserk_volumeut9ds.pdfIn PDF document text
  • https://zikawudewodag.weebly.com/uploads/1/3/4/5/134585044/1029417.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4391925/normal_5ff4dde73c24b.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4484376/normal_6005f86b386a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4419218/normal_5fd7dc5ec110f.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4414500/normal_5fe28a9a046cf.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4459028/normal_5fe5c4e9640d8.pdfIn PDF document text
  • https://vusukiziroge.weebly.com/uploads/1/3/0/9/130969505/9081063.pdfIn PDF document text
  • https://vovinusowoxojik.weebly.com/uploads/1/3/4/3/134349833/jupukerifi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4475572/normal_6013aff6700d1.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4464530/normal_5ffb662b7581b.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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