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://krisoc.ru/uplcv?utm_term=is+a+rhombus+is+a+square PDF link annotation

  • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/9706a3d6199ac9bf6152aa11f7601317/fixujim.pdfIn PDF document text
  • https://securitydm.com/slicice/file/gopidakilowusu.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/97266709335.pdfIn PDF document text
  • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609de70857f6a---2406762413.pdfIn PDF document text
  • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c74ee0cfe0c---fowevikipara.pdfIn PDF document text
  • https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/c213lufosvfhufqtmqov5frai6/89679173867.pdfIn PDF document text
  • http://debandhelder.nl/ckfinder/userfiles/files/37054416231.pdfIn PDF document text
  • https://corumosmanlimakina.com/js/ckfinder/userfiles/files/rodogopulubafazukitete.pdfIn PDF document text
  • http://www.alexgis.com/siteuploads/editorimg/file/78215983256.pdfIn PDF document text
  • https://delaneyllc.com/ckfinder/userfiles/files/94404954087.pdfIn PDF document text
  • https://behagi.eus/files/galeria/files/69779110861.pdfIn PDF document text
  • https://lawina-radom.pl/files/file/37845787869.pdfIn PDF document text
  • https://bio-obst-und-gemuese.de/userfiles/file/lebawafolupikaboropoje.pdfIn PDF document text
  • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a07ed77d440---9977885432.pdfIn PDF document text
  • http://drairtools.com/ckfinder/userfiles/files/kurutabipinebasafog.pdfIn PDF document text
  • http://k12kos.com/ckfinder/userfiles/files/77356974037.pdfIn PDF document text
  • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/c9a88j4kho3qqoghmjnlt65fvn/guwimukoz.pdfIn PDF document text
  • http://levakov132.ru/userfiles/file/tebivelumot.pdfIn PDF document text
  • https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/7049948048.pdfIn PDF document text
  • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/f246c7d98f70147b83e9e52cc23cc37c/98970460347.pdfIn PDF document text
  • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/e38ac9a6aeb08ca0fe9e42dbb3857f90/xaravufeminuxujemu.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1610b1a099331b---piwebusidefazepibar.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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