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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://krisoc.ru/uplcv?utm_term=cambiar+cuenta+facebook+android PDF link annotation

  • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5c06d649b---kepigufovefuwunogezo.pdfIn PDF document text
  • https://scout-educationguide.com/userfiles/file/gituvawagare.pdfIn PDF document text
  • https://lufty.cz/UserFiles/files/77861542651.pdfIn PDF document text
  • http://yearbookplus.com/uploads/ckfinder/files/64264491511.pdfIn PDF document text
  • https://godahoian.com/app/webroot/upload/files/vejosifemor.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/vcdirijg5q1eqbgsrs2kgtl852/95435838409.pdfIn PDF document text
  • http://ghefoot.com/fckeditor_userfiles/file/tuzivapobosoxepubi.pdfIn PDF document text
  • http://kaiyudachem.com/filespath/files/20210919133358.pdfIn PDF document text
  • https://democv.associasuite.com/imagenes/contenidos/files/55134226844.pdfIn PDF document text
  • http://adamex.ukrkarta.ua/fckeditor/userfiles/file/fabodaxora.pdfIn PDF document text
  • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/f58e17135746c3923d59f8e443af06ec/wekevux.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/26496d3bf80ae5ddd71ad74dc04cfe01/tejoxubosuvixezipi.pdfIn PDF document text
  • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132efcf19936---ramazawuvepidulene.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c19885527f---38787408613.pdfIn PDF document text
  • http://www.polni.si/Images/files/81958707925.pdfIn PDF document text
  • http://prestopc.it/upload/file/83692318392.pdfIn PDF document text
  • http://radtel-sport.pl/userfiles/file/5118590970.pdfIn PDF document text
  • http://dobrejaja.com/Upload/file/43726583959.pdfIn PDF document text
  • http://csc0311.com/userfiles/file/20210913074443_y7fyz4.pdfIn PDF document text
  • https://edouardweil.com/userfiles/file/36443543442.pdfIn PDF document text
  • http://musik-fachberatung-neumarkt.de/images/uploadedimages/file/22215821804.pdfIn PDF document text
  • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144e32f7486a---91947812745.pdfIn PDF document text
  • http://kamienneogrody.com/userfiles/file/16262655413.pdfIn PDF document text
  • http://neodermclinic.com/file_media/file_image/file/namogewikaw.pdfIn PDF document text
  • https://misbahelmudii.org/ckfinder/userfiles/files/50195943204.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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