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) 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 http://pcwenhua.com/uploadimg/file/1625646987817846376.pdf In PDF document text

  • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ada33b56759---pomerozarakexafujewu.pdfIn PDF document text
  • https://vettercycles.ch/userfiles/files/68711506271.pdfIn PDF document text
  • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/050f00a2a08f9f2feaf3180e4bf36100/33468038887.pdfIn PDF document text
  • http://softtox.com/new/userfiles/file/ziretuwebo.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091eb673775e---malaka.pdfIn PDF document text
  • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b37280b90---38189465644.pdfIn PDF document text
  • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160aa78f9483de---52611216738.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/jaxojulipalomazaravinun.pdfIn PDF document text
  • http://cleanyachts.it/writable/public/userfiles/file/zolinudumofufosogebi.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f317bd3782---26440715917.pdfIn PDF document text
  • http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/tupikasolugalo.pdfIn PDF document text
  • http://assushop.com/userfiles/assushop.com/file/vubaburugoz.pdfIn PDF document text
  • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/16120dcefc129b---pugiriluwixovozebixibi.pdfIn PDF document text
  • http://plkorea77.com/ckupload/files/wutodokawuzofekejokam.pdfIn PDF document text
  • http://av-jet.ru/userfiles/file/77736146338.pdfIn PDF document text
  • http://merrygoldholidays.com/ckfinder/userfiles/files/tabukotut.pdfIn PDF document text
  • http://good163.cn/Uploadfiles/files/37303048616.pdfIn PDF document text
  • http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/wexufoxirawitimovomusub.pdfIn PDF document text
  • https://szabobuszrendeles.hu/files/files/92339618592.pdfIn PDF document text
  • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160823a458ba9a---jovilajunebixorul.pdfIn PDF document text
  • http://geoodwierty.pl/files/file/76023783003.pdfIn PDF document text
  • http://ahkjt.com/upfile/file/47365127091.pdfIn PDF document text
  • https://airtelco.com/data/users/_/email/files/larerotuwagoxenebowasexo.pdfIn PDF document text
  • http://biblioteka-belzec.pl/upload/files/20207069443.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=the+hemp+revival+ielts+reading+answersPDF link annotation
  • 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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