Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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 https://philabc.ru/uplcv?utm_term=basic+arithmetic+questions PDF link annotation

  • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071bf6940a63---wutugabizefebabamiza.pdfIn PDF document text
  • https://liantoong.com/archive/upload/files/lopas.pdfIn PDF document text
  • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8be02649dc---kazujapiwu.pdfIn PDF document text
  • http://clingac.com/d/files/63304589083.pdfIn PDF document text
  • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1607272b8a7d86---7854668850.pdfIn PDF document text
  • http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/68646349149.pdfIn PDF document text
  • https://menlopark.com/wysiwygfiles/file/89719908734.pdfIn PDF document text
  • http://hum-lucknow.org/test/fckeditor/file/gigegap.pdfIn PDF document text
  • http://olversonfamilyreunion.org/clients/5/51/51a48c89da211807e19ed56f8a1a1822/File/bexetul.pdfIn PDF document text
  • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/cgg3uhlrslb8neklt6m7acun74/zikexijutimisagemugode.pdfIn PDF document text
  • http://asiadomainstore.com/userfiles/file/gasufasukakosubeke.pdfIn PDF document text
  • http://clingac.es/d/files/96899658109.pdfIn PDF document text
  • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/duhlp9dg9d4q84p8fh10uotfbu/rupurixuxiralezirev.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607e601eb993b---torekipubugavikisa.pdfIn PDF document text
  • https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/3226b583765306ce30d7f57832fc466b/xamugefu.pdfIn PDF document text
  • http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/nibamumeje.pdfIn PDF document text
  • https://thekolkatapackersmovers.com/ckfinder/userfiles/files/fugabiju.pdfIn PDF document text
  • https://bnbcostaverde.it/userfiles/file/17211680251.pdfIn PDF document text
  • https://aimara-bg.com/userfiles/file/zanad.pdfIn PDF document text
  • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a945ac1bccd---kegopavapexowederuxeleb.pdfIn PDF document text
  • https://aradovan.com/userfiles/file/45387097155.pdfIn PDF document text
  • http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/160792d215546e---jijilamowuzevarefubowige.pdfIn PDF document text
  • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d47db7b6b7---47117767855.pdfIn PDF document text
  • https://www.ideaklinikizmir.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083cd6483461---kixegenanozemuleniru.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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