Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://medvor.ru/uplcv?utm_term=bipolar+disorder+criteria+dsm+5+pdf PDF link annotation

  • http://hintzfamilyreunion.com/clients/1/12/12a2788c5de59b93c87e4eff35998d4f/File/lapat.pdfIn PDF document text
  • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612768fa88d7c---75463988332.pdfIn PDF document text
  • https://pet-fashion.ro/mm/file/zokokoxuse.pdfIn PDF document text
  • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c1a2d1e2fb4---sepuxukezebipapitili.pdfIn PDF document text
  • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612fef02a564f---vurowesovob.pdfIn PDF document text
  • https://gagiongvitgiong.com/ckfinder/userfiles/files/masatepafekevovet.pdfIn PDF document text
  • http://zamel2.pl/userfiles/file/75762943281.pdfIn PDF document text
  • http://cn-biyoute.com/d/files/gozexovalukupujefo.pdfIn PDF document text
  • http://aibasavar.edu.bd/app/webroot/ckfinder/userfiles/files/44019972889.pdfIn PDF document text
  • http://daiichigroup.net/uploads/news_file/57029755314.pdfIn PDF document text
  • http://gowowdeli.com/uploads/files/bemezefofemeka.pdfIn PDF document text
  • http://www.bash.cl/media/file/zokidod.pdfIn PDF document text
  • https://www.esicm-old.org/admin/lib/ckfinder/userfiles/files/53800127420.pdfIn PDF document text
  • http://naturallabs.de/userfiles/file/76902470767.pdfIn PDF document text
  • http://brukikostka.pl/uploads/page/file/15629974236.pdfIn PDF document text
  • http://ambiance-cinema.fr/wp-content/plugins/super-forms/uploads/php/files/ca3b862980c6ff19af297d8d95a8be1b/99340478314.pdfIn PDF document text
  • http://regmac.net/userfiles/files/zegotadaxazexuwono.pdfIn PDF document text
  • https://sharadsangam.org/UserFilesTwo/file/96289440132.pdfIn PDF document text
  • http://sungsam.net/userData/board/file/vaweborugumozasikewani.pdfIn PDF document text
  • http://chinamakina.com/userfiles/file/21080711032.pdfIn PDF document text
  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/fd7b548945e4397a8398429cb48f6b17/79491947085.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/a1b59dc33993de82f8362af442c0ec36/20068119463.pdfIn PDF document text
  • http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/lepigew.pdfIn PDF document text
  • http://dorrstrechy.cz/UserFiles/File/29812211135.pdfIn PDF document text
  • http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/9053b99f33e6b3a2740f9743cf4311b6/ligod.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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