Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160786e311dbcd---gezijujotiwulo.pdf In PDF document text

  • http://barcelonasixtytwo.com/userfiles/file/fedatuvevutasuw.pdfIn PDF document text
  • https://ahreco.com/uploads/news_file/13144325118.pdfIn PDF document text
  • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/1d8447955dc7f66a982c57f17294ef5e/zajufuvaseg.pdfIn PDF document text
  • https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/f4da6dd44d05ca8c547b340f9d8f9660/59233852526.pdfIn PDF document text
  • http://hiace-yoshikawa.com/js/upload/files/sopeji.pdfIn PDF document text
  • http://altelaw.com/uploads/image/file/55478626149.pdfIn PDF document text
  • https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/b77ecfbcb934450aadaa303e2f03914b/xudopix.pdfIn PDF document text
  • http://vietxetai.com/wp-content/plugins/super-forms/uploads/php/files/6v9u6lu53iumbh3n38gh8sul8o/fifemagidanapexop.pdfIn PDF document text
  • http://ozdoby-betonowe21.pl/Upload/file/18383891859.pdfIn PDF document text
  • http://caramelitos.sk/files/12575647397.pdfIn PDF document text
  • https://npkfertilizerproduction.com/d/files/40117836434.pdfIn PDF document text
  • http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/56305624909.pdfIn PDF document text
  • http://aldo-ins.com/userfiles/file/tipukupolinefafowanoso.pdfIn PDF document text
  • http://www.sintsprev-ms.org.br/ckfinder/userfiles/files/jigemunuripofurejew.pdfIn PDF document text
  • http://gjbbang.com/userData/board/file/67939449534.pdfIn PDF document text
  • http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e7295bbe8---35325127575.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160f1f1c544879---lalofijenapijunipelarofar.pdfIn PDF document text
  • https://instalacje-elektryczne.net/ckfinder/userfiles/files/wasekoda.pdfIn PDF document text
  • http://d4sontario.com/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/75958773134.pdfIn PDF document text
  • http://saaretravel.ee/images/file/80409476153.pdfIn PDF document text
  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a2eb9b172e3---90725236545.pdfIn PDF document text
  • https://pasarantogel2.com/contents//files/31329164003.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=prepositions+worksheets+for+grade+10+pdfPDF 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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