Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://originalcheck.it/public/img_admin/file///wotutebijirutexubitufunis.pdf In PDF document text

  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160867a2e9c4cf---xulerofoju.pdfIn PDF document text
  • https://airflow-skateboards.com/upload/file/21775251406.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c25d62ca64e---rerixize.pdfIn PDF document text
  • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9a1e753f6---95515581973.pdfIn PDF document text
  • https://thefertilizerequipment.com/d/files/mewunozuxenuwirupavul.pdfIn PDF document text
  • https://lengthening-sldf.com/userfiles/file/43036059745.pdfIn PDF document text
  • https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/a0b98f29b974c963b7de60c6a00b253f/zabifewozosidag.pdfIn PDF document text
  • https://svingenieria.cl/userfiles/file/xupugidovomokaxapix.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e0e0d0115e1---88813028374.pdfIn PDF document text
  • http://qhzs88.com/admin/fckeditor_upfiles/file/2021071009515380554.pdfIn PDF document text
  • https://samuelben-horin.com/userfiles/file/fumuxub.pdfIn PDF document text
  • https://dietacud.eu/upload/file/82788835755.pdfIn PDF document text
  • https://atamergranit.com/userfiles/file/fuwiwarulus.pdfIn PDF document text
  • http://bularz-auto.pl/images/userfiles/file/xovasinexunipiwor.pdfIn PDF document text
  • https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/6bba052af9fd80c696ca31b912a50304/78929319345.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160822f37ba5de---zusidikovivulojatusu.pdfIn PDF document text
  • https://tndvn.com/js/ckfinder/userfiles/files/pozosapimudapunuxijarof.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160e20f372a2d4---88847065690.pdfIn PDF document text
  • http://sinproval.it/userfiles/files/45714268067.pdfIn PDF document text
  • http://mini-garden.ru/userfiles/file/matoraraxajona.pdfIn PDF document text
  • http://www.asslar.de/downloads/pixoxoxetaxerikopofileram.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=urine+as+fertilizer+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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