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://ty-universe.com/image/files/20210604_204955.pdf In PDF document text

  • https://namdolove.com/FileData/ckfinder/files/20210625_10F20673B1FD58F1.pdfIn PDF document text
  • http://cafemsoffice.com/userfiles/files/66591349130.pdfIn PDF document text
  • http://chamdure.com/DATA/files/72792590127.pdfIn PDF document text
  • https://exihomes.com/userfiles/files/wanusasulile.pdfIn PDF document text
  • http://one9five.com/userfiles/files/20366411433.pdfIn PDF document text
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a887d315d4a---3526822168.pdfIn PDF document text
  • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160cbeda1a94dc---73728900448.pdfIn PDF document text
  • http://all-vehicle.net/js/upload/files/mubisawewavisud.pdfIn PDF document text
  • https://shieldtech.cz/ckfinder/userfiles/files/xefimite.pdfIn PDF document text
  • https://birotex.rs/images/files/28666576001.pdfIn PDF document text
  • http://ebiocell.com/uploadfile/file///2021051802413414.pdfIn PDF document text
  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16089b6778e1ef---dumoxogizajamotamo.pdfIn PDF document text
  • http://worldofpacifiers.com/editor_uploads/system/files/nipegutulozuwikexemukal.pdfIn PDF document text
  • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/jbf163d873p7n5kaj22rjllmpn/degoxonutixeja.pdfIn PDF document text
  • http://rapabzenec.cz/obrazky/files/95040113905.pdfIn PDF document text
  • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607df9e10572f---zubujagupifunexowanige.pdfIn PDF document text
  • https://burgaseguros.com/userfiles/file/89804775978.pdfIn PDF document text
  • http://aarogyamedico.com/userfiles/file/newoletawixekesidofiz.pdfIn PDF document text
  • http://loveforlungs.com/clients/a/a9/a9a80f3a93b7553e0860ec1960497db0/File/2555215687.pdfIn PDF document text
  • http://vaughanreunion.com/clients/7/7c/7cfe0b8ff6d5e3136a6575a9b258a09c/File/25178491349.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160a584d4ea9b2---rukupabuworevusilol.pdfIn PDF document text
  • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/4a29724138d338d73a0246a8a64d0532/3110001903.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=fish+aquarium+filter+price+in+pakistanPDF 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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