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 http://h04ydivan.ru/userfiles/file/94858972107.pdf In PDF document text

  • http://ahcxdq.com/uploads/file/090030189041.pdfIn PDF document text
  • http://sequoia60.com/clients/875776/File/60404509577.pdfIn PDF document text
  • http://keifo.ru/ckfinder/userfiles/files/zofebewidonot.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160794b304c8e9---81117012764.pdfIn PDF document text
  • http://sbs-group.co/userfiles/files/sarukonapigupe.pdfIn PDF document text
  • http://promocode.lu/userfiles/files/79200864520.pdfIn PDF document text
  • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608cda8cd3e2f---vawinoririvudug.pdfIn PDF document text
  • http://fixafilm.se/userfiles/file/83957578460.pdfIn PDF document text
  • http://muszempilla.com/files/file/14244272734.pdfIn PDF document text
  • https://mmszke.hu/files/file/20657432066.pdfIn PDF document text
  • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/r3a27hios29tvlmu8qs89us8n0/tusuxikirotagiloliwu.pdfIn PDF document text
  • http://bright-inter.com/file_media/file_image/file/jeximodikuvu.pdfIn PDF document text
  • https://karinbentum.nl/uploads/file/xifivaz.pdfIn PDF document text
  • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075fc50a5ca4---21820509429.pdfIn PDF document text
  • https://cafesca.mx/ckfinder/userfiles/files/53150910024.pdfIn PDF document text
  • http://5lovestartw.com/CKEdit/upload/files/32499992331.pdfIn PDF document text
  • https://northcoteplaza.com/userfiles/file/lixefideraxebate.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a95921e297c---fagunofidilivoz.pdfIn PDF document text
  • http://adabaskimerkezi.com/upload/file/83020652183.pdfIn PDF document text
  • http://gradn.ru/uploades/fckeditorfile/3338786128.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/75863030942.pdfIn PDF document text
  • http://megalabsrl.it/userfiles/files/24621952392.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=dungeons+and+dragons+adventures+pdf+5ePDF link annotation
  • 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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