Malicious PDF — malware analysis report

Heuristics 8

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://pistant.ru/uplcv?utm_term=every+decision+i+make+is+wrong PDF link annotation

  • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/96f3b72ce42efb40065c05eff68ea47c/13686287754.pdfIn PDF document text
  • http://brno-skoleni.cz/ckfinder/userfiles/files/ludosumirakegibowexo.pdfIn PDF document text
  • http://royalwedding.jp/images/blog/file/vobupokozim.pdfIn PDF document text
  • http://reguitti-engineering.it/userfiles/files/tomulekomutobitu.pdfIn PDF document text
  • https://interstudy.net/userfiles/file/85722450298.pdfIn PDF document text
  • http://pvvc.cz/files/36458007896.pdfIn PDF document text
  • http://thienminhgroup.com/uploads/userfiles/file/diwepamuwasuvifuton.pdfIn PDF document text
  • https://xyoaa.org/sites/default/files/files/lakapukafibagakimapewigo.pdfIn PDF document text
  • http://tvoirostov.ru/ckfinder/userfiles/files/77124806261.pdfIn PDF document text
  • http://kasintorn.com/images/upload/files/tofew.pdfIn PDF document text
  • http://zhuoer.ltd/userfiles/file/86659062655.pdfIn PDF document text
  • http://zenobiacultura.it/userfiles/file///lamudinisu.pdfIn PDF document text
  • https://impulsa.mantareys.net/uploads/plantillas/files/witekizudovejezetu.pdfIn PDF document text
  • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/d8de1c6cc50724a09bdcae41aa3abc98/vufukojeguwoze.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16139522c3f572---girabowotaketus.pdfIn PDF document text
  • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/765b3a86a8d24c425c948095a18aafa1/selekewekokavidizavot.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-9-8/20210908141149298919.pdfIn PDF document text
  • http://saxonrt.hu/img/userfiles/files/giximefudilekafapex.pdfIn PDF document text
  • https://pactforfamilies.org/ckfinder/userfiles/files/42825142417.pdfIn PDF document text
  • http://studioassociatoemc.com/userfiles/files/mokewarididifukazu.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146ee203990b---xupusijepawa.pdfIn PDF document text
  • https://assignmentmart.com/ckfinder/userfiles/files/97212781307.pdfIn PDF document text
  • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d287904d5e---55652318676.pdfIn PDF document text
  • https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/zufidimugizijotovowogerek.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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