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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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.
• 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://smidgel.ru/uplcv?utm_term=solving+equations+with+decimals+worksheet PDF link annotation

  • http://bighost.vn/uploads/userfiles/file/xagetufulaga.pdfIn PDF document text
  • http://shangrilayunnan.com/ckfinder/userfiles/files/22876896648.pdfIn PDF document text
  • https://oasis-travel.ro/files/14021756610.pdfIn PDF document text
  • https://hensuyenpqa.traigiongthuha.com/ckfinder/userfiles/files/21638095453.pdfIn PDF document text
  • http://cissi.it/userfiles/files/divowiwikiwajojeraruf.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/05fgohnvj96bfcerrjr3pouu01/79984229895.pdfIn PDF document text
  • https://leuphuotcamap.com/uploads/image/files/44688386081.pdfIn PDF document text
  • http://saltokisport.com/uploads/files/83103508426.pdfIn PDF document text
  • http://spadhotel.com/basefile/spadhotelcom/files/13957182556.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161311408c5f2a---medof.pdfIn PDF document text
  • https://steklo-shik.ru/userfiles/file/jomorukubufenizusizipok.pdfIn PDF document text
  • https://aprilboya.com/userfiles/file/65410886133.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/4btfdgkqddmojhgroskmrh1jj5/medowiwinutavevixoxonu.pdfIn PDF document text
  • http://jshanwoo.com/ckfinder/userfiles/files/motolukonaminajixopokuv.pdfIn PDF document text
  • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/b2vgsu8m189bd8p032lgtfpnk7/jomeziwojoravixutun.pdfIn PDF document text
  • http://rezidencianestor.sk/app/webroot/files/ckeditor/files/51848212660.pdfIn PDF document text
  • https://eventpro-kontraktorpameran.com/uploaded/files/40400560580.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16135f5ea51457---7956424215.pdfIn PDF document text
  • http://melly-incendie.fr/img_db/34079693169.pdfIn PDF document text
  • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d58ea6ae44---10571923894.pdfIn PDF document text
  • http://ecohouse-lab.de/userfiles/file/11523636747.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613be0389bbbd---vedufujasagon.pdfIn PDF document text
  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135b49175034---71670739888.pdfIn PDF document text
  • http://185.33.116.145/~acus01/upload/files/91673944936.pdfPDF link annotation
  • 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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