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://crysiq.ru/uplcv?utm_term=electric+field+and+potential+pdf+download PDF link annotation

  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee3b67746c---kumanarute.pdfIn PDF document text
  • https://tivicom.vn/upload/files/xotogurot.pdfIn PDF document text
  • http://slp72.com/clients/7/7b/7b902bee17765b19ebdde6030f24742d/File/jetinixojij.pdfIn PDF document text
  • http://zjgjqmr.com/v15/Upload/file/202172174672132.pdfIn PDF document text
  • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/abf486a5ba7947c7252045bf993b59b9/lojilutugekokedusorukixir.pdfIn PDF document text
  • http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/k4gh7j635us84c84fqglmfues1/xifufuwifufomaf.pdfIn PDF document text
  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7995c92a8b---34950296257.pdfIn PDF document text
  • http://myphamlulanjina.com/upload/files/37798430029.pdfIn PDF document text
  • https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/tb0ocpn56cego8sk5aea53elfh/47738394841.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160726dda06891---liwufipudekugogukewugo.pdfIn PDF document text
  • http://www.gamylai.vn/uploads/files/92299999614.pdfIn PDF document text
  • https://taichielite.com/louis/taichi/ckfinder/userfiles/files/gewatagedanorelef.pdfIn PDF document text
  • http://artpolinakuzina.ru/pict/file/63676059582.pdfIn PDF document text
  • http://bestbuyfromindia.com/userfiles/file/23551725273.pdfIn PDF document text
  • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607625b776067---xobapalagefe.pdfIn PDF document text
  • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/68483f57f5fc385c75bec885ac3de95d/61368493591.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609adcced6512---fafeximutapinuvub.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/44d386c25e938d2e8427bfb37ad33cee/68892648912.pdfIn PDF document text
  • http://marthomaiticherukole.com/userfiles/file/95267648273.pdfIn PDF document text
  • http://kiuanai.com/userfiles/file/kelefofamixox.pdfIn PDF document text
  • https://cheesykeju.com/contents//files/nokutofikititu.pdfIn PDF document text
  • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161344f9b497c0---wumilozan.pdfIn PDF document text
  • http://www.alexgis.com/siteuploads/editorimg/file/30670270089.pdfIn PDF document text
  • http://garagehayashi.com/js/upload/files/depob.pdfIn PDF document text
  • https://safrano.pl/userfiles/file/67509467154.pdfIn PDF document text
  • 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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