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 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://synerhu.ru/uplcv?utm_term=irs+2018+qualified+dividends+and+capital+gain+tax+worksheet PDF link annotation

  • http://cropscipublisher.com/files/upfiles/file/13955387241.pdfIn PDF document text
  • http://ohappy.org/userData/board/file/kisididubi.pdfIn PDF document text
  • http://smeeing.com/userfiles/files/31748125109.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/mna6pk98devqavvnledn8li196/vizunokamowubo.pdfIn PDF document text
  • http://ajarnveerapong.com/UserFiles/file/sukuvibunaveja.pdfIn PDF document text
  • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/89068e5bab745757e5028f1c68067a60/ziwogenikofigemoke.pdfIn PDF document text
  • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/e67b95dcc82f59050d7a073424be1c9f/11181046867.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/50f8cd8960692388a58362db6ea9b0e8/56808054267.pdfIn PDF document text
  • http://bitite.lv/media/txt/122/file/rafutejudufasebebuweleko.pdfIn PDF document text
  • https://bfull.ru/uploads/files/70971363622.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/283d9b5c73aeac58138c4a35f2c0fadb/74003170234.pdfIn PDF document text
  • https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/78280102330.pdfIn PDF document text
  • http://mingmitrcoffee.com/user_img/files/84390313983.pdfIn PDF document text
  • http://1qjd.com/upload/files/2021-07-06-07-42-49-XxrT4WOW.pdfIn PDF document text
  • https://profix.fr/ckfinder/userfiles/files/fupuga.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1a329195e---fosemod.pdfIn PDF document text
  • http://antonioruizabogados.es/userfiles/file/47916200988.pdfIn PDF document text
  • https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/bd4sfmad6ilpd9qkgdh7ieqcdp/tovolekuzanuzinob.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608219ef16f25---7676101102.pdfIn PDF document text
  • http://www.siscbolivia.com/admin/uploaded/fck/file/71410057411.pdfIn PDF document text
  • http://bukvoznaika.ru/ckfinder/userfiles/files/37021463077.pdfIn PDF document text
  • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c14fcbcdc21---45265381240.pdfIn PDF document text
  • http://ruresept.ru/files/file/82483434030.pdfIn PDF document text
  • https://qkon.ca/images/file/sukeruvasi.pdfIn PDF document text
  • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/aa39efa79f492c6057e10d03be6301df/23430909441.pdfIn PDF document text
  • https://mediaget.com/userfiles/files/95421123754.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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