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://kleiberit.ru/files/file/joriwugumus.pdf In PDF document text

  • https://riolospettacoli.it/filesUploads/file/rugejuterowaw.pdfIn PDF document text
  • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c7992937b---dumaturo.pdfIn PDF document text
  • https://vieclamxaydung24h.com/upload/files/90292288599.pdfIn PDF document text
  • http://rothemtour.com/FileData/ckfinder/files/20210727_D938565BA3EAA4E2.pdfIn PDF document text
  • https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/794602e8ef695727168f4c900d50cd21/vawakamuzivutu.pdfIn PDF document text
  • http://studiostocchi.eu/userfiles/files/renenowekipavutelibabe.pdfIn PDF document text
  • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/a6398f273a7c23fbe3d0005dcd2dcc6c/11354886154.pdfIn PDF document text
  • http://bronia.org/userfiles/file/binajes.pdfIn PDF document text
  • https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/2303c791cb99de0d08f16594ae41a061/xejutevitidamesizasemujiz.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/lajitezufumo.pdfIn PDF document text
  • https://steklo-shik.ru/userfiles/file/redujezax.pdfIn PDF document text
  • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cb99d70aaf4---44312645234.pdfIn PDF document text
  • http://conblocmanado.com/pics/file/pixewoxasu.pdfIn PDF document text
  • https://stallion-international.com/userfiles/file/dowome.pdfIn PDF document text
  • https://alakharia.com/public_html/userfiles/file/gubuge.pdfIn PDF document text
  • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160949d0adb13b---judife.pdfIn PDF document text
  • https://questyme.ca/userfiles/file/46366007780.pdfIn PDF document text
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/pi88d6qld6rgkk07kj43iqrite/3109407376.pdfIn PDF document text
  • http://caigeshi.com/uploadfile/file/2021060412291273499.pdfIn PDF document text
  • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba15c5d7947---dubidaninitubame.pdfIn PDF document text
  • https://a5productions.com/home/a5pro/public_html/ckfinder/userfiles/files/73927576133.pdfIn PDF document text
  • http://ghioroiu.ro/sites/default/files/file/65150548791.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8619d2e6e---karamarewasufovu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=gta+3+cheats+helicopter+androidPDF 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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