Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://drafthe.ru/uplcv?utm_term=longman+preparation+series+for+the+toeic+test+pdf PDF link annotation

  • https://cap2013.aseat.fr/userfiles/file/32475630567.pdfIn PDF document text
  • https://phuquiland.com/upload/files/24374649827.pdfIn PDF document text
  • https://jasz-pap.hu/UserFiles/file/gisoxisepujixalenuwixogu.pdfIn PDF document text
  • https://peoplesmodelinternational.com/ckfinder/userfiles/files/27932261359.pdfIn PDF document text
  • http://dreamwith.gni.kr/ckupload/files/fisujapizoxupukako.pdfIn PDF document text
  • https://asiantms.com/ckfinder/userfiles/files/81134414840.pdfIn PDF document text
  • http://xn--z92bzy85x.com/userData/board/file/vinozo.pdfIn PDF document text
  • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/5f9fb963888ffcb06cfd22e55a66b222/11679932510.pdfIn PDF document text
  • http://fabriquetextil.com/js/new/fckeditor/userfiles/file/30756609636.pdfIn PDF document text
  • http://tbeaindia.com/userfiles/file/gamezuzetekezowipegu.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0b3a89db5---36529477558.pdfIn PDF document text
  • https://almudenafernandez.co/ckfinder/userfiles/Files/bizadonojodukiwamid.pdfIn PDF document text
  • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401e08f3240---pijugamono.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149722ad28e9---96865444045.pdfIn PDF document text
  • http://princeverma.in/uploads/files/60284593022.pdfIn PDF document text
  • http://wyadonline.com/userfiles/file/5952154759.pdfIn PDF document text
  • http://th-hl.com///upload/files/gurifidi.pdfIn PDF document text
  • http://annassteen.com/ckfinder/userfiles/files/38376123462.pdfIn PDF document text
  • http://istvietnam.com/rich_editor/file/33576593285.pdfIn PDF document text
  • http://willajarmar.pl/userfiles/file/87201691168.pdfIn PDF document text
  • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161339a511629c---41445777369.pdfIn PDF document text
  • https://www.oalysa.cz/ckfinder/userfiles/files/guvafenipoworilela.pdfIn PDF document text
  • https://asiastudy.in/ckfinder/userfiles/files/85891907144.pdfIn PDF document text
  • http://newworldss.com/uploads/file/21287298307.pdfIn PDF document text
  • https://dgssu.com/upfolder/e/files/20210909191340.pdfIn PDF document text
  • http://supermarketdv.ru/files/file/bevilivowoximoligevaz.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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