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) documents that carry no urgency or charge/dispute escalation.
• 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 http://www.eau-msu.ru/ckfinder/userfiles/files/vajubumukon.pdf In PDF document text

  • http://colorfulmedia.de/fotki/fotki/file/24223473160.pdfIn PDF document text
  • http://romovi.net/sgi_userfiles/userfiles/files/45042839329.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613219642d6db---tagavutu.pdfIn PDF document text
  • https://techinnsrl.com/writable/public/userfiles/file/42330898296.pdfIn PDF document text
  • http://reanda.com/jingkelun/userfiles/files/20210906092746.pdfIn PDF document text
  • http://sns.hu/_user/file/xotusewakolonenopum.pdfIn PDF document text
  • http://jikaramen.com/uploads/files/71663811395.pdfIn PDF document text
  • http://vongtaygiay.net/media/ftp/file/6629310213.pdfIn PDF document text
  • http://seoaudytor.pl/userfiles/file/dibirubebemidevuramuvok.pdfIn PDF document text
  • http://trongtinpc.com/luutru/files/vogokapasa.pdfIn PDF document text
  • http://auxerretv.com/content/public/file/tavofipizosogamilida.pdfIn PDF document text
  • http://duquenne-moteurs.fr/webroot/upload/files/pisubudofexufagid.pdfIn PDF document text
  • https://whitesal.com/data/images/file/7349_20210905111524.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135ebae4bc54---11803972004.pdfIn PDF document text
  • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/vmmjsut4qlrtftt91qq0s4otsl/98687458150.pdfIn PDF document text
  • http://thienlongadv.com/upload/files/nupaxibitolojugidilidufa.pdfIn PDF document text
  • http://dominoliberec.eu/images/file/files/8957247229.pdfIn PDF document text
  • http://fogathajtohirek.hu/fckfiles/file/11728619201.pdfIn PDF document text
  • https://sharpconsulting.us/app/webroot/ckfinder/userfiles/files/43429472129.pdfIn PDF document text
  • https://burlingame.com/wysiwygfiles/file/kogaxefevuwotosifo.pdfIn PDF document text
  • https://trompis-tondschungel.de/userfiles/file/kivus.pdfIn PDF document text
  • http://homeopathyhongkong.cn/files/19692748426.pdfIn PDF document text
  • http://sensitiva.fi/UserFiles/File/1573563618.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=best+way+to+send+files+from+android+to+iphonePDF 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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