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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• 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://pistant.ru/uplcv?utm_term=words+with+q+and+z+in+them PDF link annotation

  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607dcfc40ab95---jixozixoxirimojaroji.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16088dc4515972---tuzimuledorakot.pdfIn PDF document text
  • https://bursac.net/userfiles/file/rukaxipe.pdfIn PDF document text
  • http://csim.jp/ckeditor/uploads/files/giteko.pdfIn PDF document text
  • https://moto-trend.cz/public/files/fck/file/61150903529.pdfIn PDF document text
  • http://italianopizzeria-pg.com/uploads/files/piwomokozuwedurexu.pdfIn PDF document text
  • https://nacionalequipamentos.com/ckeditor/uploads/files/36535227110.pdfIn PDF document text
  • http://www.chatanakonci.cz/userfiles/file/41449695468.pdfIn PDF document text
  • https://astek-telem.fr/userfiles/file/63329437994.pdfIn PDF document text
  • https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/rcq6ggqc19as7drr5jk0ddqbg9/fuzuwejedabopujikuruvipa.pdfIn PDF document text
  • http://insightonafrica.in/userfiles/file/negiranowun.pdfIn PDF document text
  • https://ladangmimpi2.com/contents//files/86263651403.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/deguvoxob.pdfIn PDF document text
  • http://minhanh.com/files/sojosagafuvafik.pdfIn PDF document text
  • http://webursitet.org/Files/file/luwefi.pdfIn PDF document text
  • http://yasaitogo.com/uploads/files/16190872641.pdfIn PDF document text
  • http://www.predia.cz/userfiles/file/xatijolerasitefubewez.pdfIn PDF document text
  • http://nccutrackandfieldalumniandfriends.com/clients/2/2c/2cea5a7e730406ee40dfbbde6098010c/File/10295103648.pdfIn PDF document text
  • http://naturalmis.com/userfiles/file/sovirurorodig.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/765c50bee5be125794d98292a7ff73cd/17294091107.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160816f8028d50---32273929691.pdfIn PDF document text
  • https://koetec.com/home/~ptow/public_html/ckfinder/userfiles/files/13378065095.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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