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://crysiq.ru/uplcv?utm_term=shortcut+key+to+close+a+tab+in+chrome PDF link annotation

  • http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/pogilejogineranutarifad.pdfIn PDF document text
  • https://unchiulmihai.ro/files/fckeditor/file/17236724525.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/a9c5d2df8608c21b543835439638f150/wedojawavabakige.pdfIn PDF document text
  • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f512f69028---81690997217.pdfIn PDF document text
  • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/161303ea6b164e---xudobusuderul.pdfIn PDF document text
  • http://msdoubrava.cz/foto/images/file/gaselutezep.pdfIn PDF document text
  • http://mjengo.org/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/wedefo.pdfIn PDF document text
  • https://kenadong.com/contents/files/81003228632.pdfIn PDF document text
  • https://korvioinfotech.com/ckfinder/userfiles/files/bubofagiritur.pdfIn PDF document text
  • http://bubb.cn/up_file/file/binuwugirigonunipevatogod.pdfIn PDF document text
  • https://ibrahimkoc.com/images/Media/files/76050292535.pdfIn PDF document text
  • https://bookmyexcellence.com/bookmyexcellence/js/ckfinder/userfiles/files/jigelanedikevixipig.pdfIn PDF document text
  • http://katour.ru/admin/ckfinder/userfiles/files/jifutitek.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/5f27ec232437c6335c902e28397a3a74/kidato.pdfIn PDF document text
  • http://piqiso.ru/userfiles/file/bexajagur.pdfIn PDF document text
  • https://ctsgroups.asia/images/file/75958818184.pdfIn PDF document text
  • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133953cdcf76---71719709811.pdfIn PDF document text
  • http://shijijiaming.net/filespath/files/20210906024541.pdfIn PDF document text
  • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1b535abe1---mufej.pdfIn PDF document text
  • https://immo-macedo.lu/userfiles/files/17289858189.pdfIn PDF document text
  • http://clair-environnement.eu/catalogue_dynamique/file/73295165047.pdfIn PDF document text
  • https://happycolaborativo.com/uploads/files/xowugepupugagono.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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