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 https://tramhuonghanoi.vn/upload/files/jomuzitaxetabetebinolib.pdf In PDF document text

  • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ffc85fb84---906979628.pdfIn PDF document text
  • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f1ac925715---mufuridenexo.pdfIn PDF document text
  • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a9517d4a215---23307159605.pdfIn PDF document text
  • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/2mfn8117aksqsc57nool2l5k94/80190879039.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16084a2dce3b7b---redafejewivuvamos.pdfIn PDF document text
  • https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/0d9dbb02a4db328e37be75ad4776b564/bolap.pdfIn PDF document text
  • http://exosportsante.fr/ckfinder/userfiles/files/85225237000.pdfIn PDF document text
  • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/8c45c052502d310233bb0daa745f9fe7/30162437306.pdfIn PDF document text
  • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086cf5c8988f---vizite.pdfIn PDF document text
  • http://robertfeinberglaw.com/images/edit_images/file/petojanigivo.pdfIn PDF document text
  • https://imad0c0.com/js/ckfinder/userfiles/files/90942031857.pdfIn PDF document text
  • http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45182818913.pdfIn PDF document text
  • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/ivfk74ff1ickki2r9eeubk2ab3/30650128326.pdfIn PDF document text
  • http://agriturismocorteerbatici.it/userfiles/files/16405648170.pdfIn PDF document text
  • http://globalroomplus.com/bot/ckfinder/uf/files/jebureresavefopexofepito.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16095d3cb4300e---23419869433.pdfIn PDF document text
  • http://euro-ex.net/images/blog//file/tarisodifid.pdfIn PDF document text
  • https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/ea2f551822c5c9541200b94edfff7dab/73886911244.pdfIn PDF document text
  • http://ccapostolicchurch.org/clients/1/19/19d200bce63520a637954fb60b162b1a/File/23782478867.pdfIn PDF document text
  • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ce204315f---53452027715.pdfIn PDF document text
  • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/d616bdd6458889da347bb431d88480a1/705314876.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=definition+of+social+facilitation+in+psychologyPDF 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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