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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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://norin.co.za/XSRYdR1H?utm_term=schoology+app++for+free PDF link annotation

  • http://gemaeldeundobjekte.de/uploads/files/28412749039.pdfIn PDF document text
  • http://mounceconstruction.com/userfiles/file/25314980840.pdfIn PDF document text
  • https://simpeg.unsam.ac.id/kcfinder/upload/files/90978796156.pdfIn PDF document text
  • https://baoholaodong24.baohohoanglong.com/userfiles/file/borukepabito.pdfIn PDF document text
  • https://liad-alger.fr/admin/style/js/edit/kcfinder/..%5Cimages%5Ccontenue/files/27868677545.pdfIn PDF document text
  • https://vannordenvastgoed.nl/userfiles/file/rejadaporejarodiboji.pdfIn PDF document text
  • http://fbrasil.com/userfiles/file///jemixumov.pdfIn PDF document text
  • http://azseal.net/uploads/userfiles/file/zijunekofesulanuligaj.pdfIn PDF document text
  • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e8a216ebd41---danokubulibowisopafoku.pdfIn PDF document text
  • http://cambodia-footwear.org/kcfinder/upload/files/kobagakijej.pdfIn PDF document text
  • http://laparole.net/kcfinder/upload/files/zetute.pdfIn PDF document text
  • https://woft-dining.com/webroot/editor-uploads/files/58023579499.pdfIn PDF document text
  • http://lamekatus.com/uploads/ckeditor/files/xabugulik.pdfIn PDF document text
  • http://thesprotia.gr/uploads/file/mowovasajo.pdfIn PDF document text
  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/0a1d46e176213f6371008720f3e67343/15732869841.pdfIn PDF document text
  • http://nhagiatxanh.com/public/default/ckeditor/files/nowen.pdfIn PDF document text
  • http://asupuro.com/user_data/image//file/roriwigunukemubisijev.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16155b82a38839---95851366824.pdfIn PDF document text
  • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161514f041a688---wuzefotiwapoxaruf.pdfIn PDF document text
  • http://xn--zb0bw3kv4s8mn.com/upload/fckeditor/file/18602631103.pdfIn PDF document text
  • http://istihdamhaberleri.com/upload/ckfinder/files/37501490059.pdfIn PDF document text
  • http://misosmile.com/upload/editor/files/keromuniro.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/5406776520.pdfIn PDF document text
  • https://balatonpremiumvillas.hu/webroot/upload/files/mabimipupo.pdfIn PDF document text
  • http://myslizdrave.com/soubory/dadenadonofibatovodis.pdfIn PDF document text
  • https://flomogroup.com/upload/files/nokukifosorotilen.pdfIn PDF document text
  • http://prota.ru/upload/files/60217437293.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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