Malicious PDF — malware analysis report

Heuristics 5

• 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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/wix?keyword=nitrogen+cycle+close+read+worksheet+answers In PDF document text

  • https://joripirido.weebly.com/uploads/1/3/0/7/130776040/512a512d9.pdfIn PDF document text
  • https://cdn.sqhk.co/ravawiku/gcjf4gj/family_mysteries_poisonous_promises_download.pdfIn PDF document text
  • https://zugufavowi.weebly.com/uploads/1/3/0/8/130874222/1551193.pdfIn PDF document text
  • https://cdn.sqhk.co/bokirebi/iQ76Dha/80501872687.pdfIn PDF document text
  • https://vamarimorojikav.weebly.com/uploads/1/3/4/6/134640123/5505897.pdfIn PDF document text
  • https://cdn.sqhk.co/tasokuxu/WPghs80/86356421281.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/feliso/cerere_demisie_2017.pdfIn PDF document text
  • http://zuronixo.rf.gd/diwuxof.pdfIn PDF document text
  • http://dulubuwukijel.epizy.com/bubapakubawo.pdfIn PDF document text
  • https://s3.amazonaws.com/xonaxevetaf/basumax.pdfIn PDF document text
  • http://xibogowidam.epizy.com/43929421213.pdfIn PDF document text
  • https://s3.amazonaws.com/lakadutof/vabidolujosoluvukal.pdfIn PDF document text
  • http://godavuvexo.epizy.com/xoxidaxokutunux.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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