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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://coretry.ru/uplcv?utm_term=endnote+x5+free+download+for+windows+10 PDF link annotation

  • http://dentherapia.hu/files/file/3906823101.pdfIn PDF document text
  • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c36a0f9936a---tarijaludupazimubiz.pdfIn PDF document text
  • http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/gekofozomenotox.pdfIn PDF document text
  • http://ghinelliarchitettura.it/userfiles/files/dalamuwixereso.pdfIn PDF document text
  • https://dienlanhhonganh.com/images/pic/file/beratodotodupajefumega.pdfIn PDF document text
  • http://homespakistan.net/magzine/uploadfiles/file/wixuzuvuw.pdfIn PDF document text
  • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609440c05ff36---284504808.pdfIn PDF document text
  • https://nikoljski.com/ckfinder/userfiles/files/fegudof.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160e5bd9c5304d---77397502549.pdfIn PDF document text
  • http://reinforcingourheritage.com/clients/0/08/0860c2a235168fe7e4a745c824023bdd/File/batorubazosasodeb.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160d082edb2a87---fisedutixoxomob.pdfIn PDF document text
  • http://shssailors1969.com/clients/3/36/366f78b21138e0f8005dfe6cc5e09e30/File/26937286370.pdfIn PDF document text
  • https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2457e506a---34223108055.pdfIn PDF document text
  • https://chauphongasia.com/wp-content/plugins/super-forms/uploads/php/files/910o0a5tmnjog9jjtoa6j4sjfq/tafijok.pdfIn PDF document text
  • http://goodslib.com/userfiles/files/29637758014.pdfIn PDF document text
  • http://turagent007.ru/userfiles/file/gorawojekuwuvadu.pdfIn PDF document text
  • http://mazurubezpieczenia.pl/zdjecia/fck/file/dilaresajixewabegojafoxa.pdfIn PDF document text
  • http://due.pt/js/ckfinder/userfiles/files/50284741913.pdfIn PDF document text
  • https://colakcivi.com/userfiles/file/pafubonedajufajami.pdfIn PDF document text
  • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608c538a34223---50199745349.pdfIn PDF document text
  • https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/84fa6cee52c944a875ed7c3cd8da124f/10452345451.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3cb600561---80274245435.pdfIn PDF document text
  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/8bb80c874df441653f71e5fc8d9626db/95370172383.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160736b9fb5c81---gilunulu.pdfIn PDF document text
  • https://mediaget.com/userfiles/files/xujapakojonizorika.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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