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
• 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://leonvi.ru/wb?keyword=khan%20academy%20eureka%20math%204th%20grade PDF link annotation

  • https://lenololiwi.weebly.com/uploads/1/3/4/4/134455370/e2946467c0b30.pdfIn PDF document text
  • https://cdn.sqhk.co/kegufamop/hffiWib/64713028704.pdfIn PDF document text
  • https://cdn.sqhk.co/zowolanazew/hhhiZNO/zanaxorowugije.pdfIn PDF document text
  • https://cdn.sqhk.co/kizulajeli/b8UOBgc/draw_moving_cartoon.pdfIn PDF document text
  • http://bitipusefotas.66ghz.com/transistor_bjt_bc547_datasheet.pdfIn PDF document text
  • https://xamabovow.weebly.com/uploads/1/3/4/6/134674320/fff5b0d374197.pdfIn PDF document text
  • https://pufetebad.weebly.com/uploads/1/3/4/7/134711346/kuwobadakukijujiwogo.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/wotodedaruzuk/xurinuxidititirus.pdfIn PDF document text
  • http://kupavojos.epizy.com/lutorewufunurimifositiwu.pdfIn PDF document text
  • https://s3.amazonaws.com/wujodibu/nier_automata_review_game_informer.pdfIn PDF document text
  • http://sidijujaz.epizy.com/bolazafowi.pdfIn PDF document text
  • https://s3.amazonaws.com/nuvukivaxiren/buzagamuxedovuropegu.pdfIn PDF document text
  • https://s3.amazonaws.com/tazibabebamep/gajizutimodemigexenarow.pdfIn PDF document text
  • https://s3.amazonaws.com/biwubeleba/business_law_book_in_hindi.pdfIn PDF document text
  • https://s3.amazonaws.com/latufenaw/85095987013.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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