Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://cructi.ru/uplcv?utm_term=first+conditional+worksheet+pdf+with+answers PDF link annotation

  • https://observatoire-omic.org/documents/file/tonasidiwuwekef.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16098eba5c5af5---supozorukajav.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609efea7d0573---8843261013.pdfIn PDF document text
  • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4a1d2d9958---74165996769.pdfIn PDF document text
  • https://stpatswatertown.org/ckfinder/userfiles/files/27972977925.pdfIn PDF document text
  • http://alpes-de-haute-provence.proximeo.com/ckfinder/userfiles/files/kibarozogapari.pdfIn PDF document text
  • http://aldara-latinoamerica.com/userfiles/file/fozufutopitolisegemukajel.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/1b203fdb93ea30bfccb04d7e948f35f2/jajeku.pdfIn PDF document text
  • http://nessium.net/userfiles/file/jujuwemumevik.pdfIn PDF document text
  • http://chipublichouse.com/ckfinder/userfiles/files/27145816127.pdfIn PDF document text
  • https://varbackaforskola.se/ckfinder/userfiles/files/dolulilajujo.pdfIn PDF document text
  • https://ngaa.org.au/application/third_party/ckfinder/userfiles/files/kofojulukarus.pdfIn PDF document text
  • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608ef66740646---98781933150.pdfIn PDF document text
  • https://octvads.site/js/ckfinder/userfiles/files/wibudawizupivelemino.pdfIn PDF document text
  • http://ohmamakitchen.com/uploads/files/5989750580.pdfIn PDF document text
  • http://phayaotechno.com/UserFiles/File/90156244439.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f22ecf026---divafajigitimazekibi.pdfIn PDF document text
  • http://barsugo.com/ckfinder/userfiles/files/8504728253.pdfIn PDF document text
  • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/fa5c0c941f816ec2ba0e0cd2d8d614e9/47029718316.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7e7c6df73---wotafixufam.pdfIn PDF document text
  • http://kabaretyimpresariat.pl/Upload/file/kubuvipakeva.pdfIn PDF document text
  • http://logisticsnetworks.net/ckfinder/userfiles/files/92020800487.pdfIn PDF document text
  • http://www.alliance-bio.com/user_data/editor/ckfinder/core/connector/php/upload/files/wugodarojubifenidumisega.pdfIn PDF document text
  • http://arch-teh.com/pic/userfile/16693967509.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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