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://cructi.ru/uplcv?utm_term=angry+birds+3+mod+apk PDF link annotation

  • http://lavalnerina.it/userfiles/file/watewawinonubijewawa.pdfIn PDF document text
  • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/864957fc843652238beaf7b38d72193d/65148522126.pdfIn PDF document text
  • http://linkipt.com/_UploadEditor/files/zutizagifosopenodofizik.pdfIn PDF document text
  • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613a1831c7097---dolajov.pdfIn PDF document text
  • http://weifong.tw/fckimages/file/553817569.pdfIn PDF document text
  • http://modulobase.com/userfiles/file/tinesidemusizijato.pdfIn PDF document text
  • http://trubaopt.ru/content/file/10157492146.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e18ada5f1---zizixagamokisigivokamo.pdfIn PDF document text
  • http://hamzalegalservices.com/userfiles/file/2951115414.pdfIn PDF document text
  • http://playeasypiano.com/resources/fck_images/85756981906.pdfIn PDF document text
  • http://gamecoast.by/uploads/files/sunosoror.pdfIn PDF document text
  • http://akinmedikal.com/uploads/file/rojulokurenajuludinu.pdfIn PDF document text
  • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/de977fdd885140965029bc71757b9809/44141884172.pdfIn PDF document text
  • http://xn----7sbicwad4afgcgd5aph7d5e.xn--p1ai/ckfinder/userfiles/files/33484560799.pdfIn PDF document text
  • http://chafewyuok.handysociality.com/upload/files/57816992331.pdfIn PDF document text
  • http://thucancakoihikari.com/luutru/files/39380023977.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/a3ok22f8d7uc57g8oguid1d366/nitifawivupilitususum.pdfIn PDF document text
  • http://garage-fuji.jp/js/upload/files/mofazabakojiruzetibudubos.pdfIn PDF document text
  • http://clinicaveterinariabilancino.it/userfiles/files/66298283768.pdfIn PDF document text
  • https://budapestpainter.hu/ckfinder/userfiles/files/teseropuzamubozibumuvape.pdfIn PDF document text
  • https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/931f043ec2ee62e77a25309a562023f9/fugajakobelazubami.pdfIn PDF document text
  • http://tanphatinst.com/vietkiendo/upload/file/13548571520.pdfIn PDF document text
  • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2ff718c84---98229463838.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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