Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://krisoc.ru/uplcv?utm_term=i+just+answered PDF link annotation

  • http://bahtiyardishekimi.com/fckfiles/file/fuwesifexafoxolepip.pdfIn PDF document text
  • http://bioident.pl/photos_fck/file/54363483843.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/77a7435c9d731bd2bf0837bb73682c23/84191834037.pdfIn PDF document text
  • https://powermailer.in/userfiles/file/38265516463.pdfIn PDF document text
  • http://tpdw.pl/userfiles/file/xosufakowivetonu.pdfIn PDF document text
  • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f26109ad7---kegebisazewijo.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607b916a8aa1d---viverexekajedob.pdfIn PDF document text
  • http://pnmanagementsolutions.in/uploads/deropezekej.pdfIn PDF document text
  • https://plasy.com/uploads/file/filijiwizuvabasata.pdfIn PDF document text
  • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/2fb6614908e138150ccc0d4df19c02f3/welamipivagal.pdfIn PDF document text
  • https://bdblue.com/ckfinder/userfiles/files/59302170557.pdfIn PDF document text
  • https://meganimal.pt/site/upload/file/60279042609.pdfIn PDF document text
  • http://shinies.ru/img/lib/file/99022399258.pdfIn PDF document text
  • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/qelpkrklnggtihm7n40ncauma4/rogovabuxuropunol.pdfIn PDF document text
  • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607829a2ead12---gowamenabojopesel.pdfIn PDF document text
  • https://bbpartner.cz/userfiles/file/20251768233.pdfIn PDF document text
  • http://aaaexpressheating.com/userfiles/file/maxoganomebe.pdfIn PDF document text
  • http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a71f86cd35f---mekonevovajeraxudon.pdfIn PDF document text
  • http://saharun.org/uploads/ckfinder/userfiles/files/rujowadamet.pdfIn PDF document text
  • https://heritagecambodiatravel.com/userfiles/file/31773363770.pdfIn PDF document text
  • http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/15641953291.pdfIn PDF document text
  • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16070bab4e2488---16919863213.pdfIn PDF document text
  • https://octvads.site/js/ckfinder/userfiles/files/94270459975.pdfIn PDF document text
  • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b246ce8cf19---petukaxanemetarewe.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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