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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://laborke.ru/uplcv?utm_term=fafnir+f4+code PDF link annotation

  • http://pbhdom.eu/userfiles/file/27902631367.pdfIn PDF document text
  • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/16134a3db6e638---76805550697.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e75924645---muxevejewalonapepenavizor.pdfIn PDF document text
  • http://hiroi-es.info/yamituki-n/uploads/files/jufosama.pdfIn PDF document text
  • http://diplomat2014.ru/ckfinder/userfiles/files/91139145703.pdfIn PDF document text
  • http://autosvilar.com/uploads/ckfinder/files/sumafojebamalobobapeg.pdfIn PDF document text
  • http://auto4-spb.ru/public/images/ckfinder/files/11898348345.pdfIn PDF document text
  • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/d5401931e3721ae26763cea0d007ee33/962835097.pdfIn PDF document text
  • http://orosweb.hu/userfiles/file/kuduz.pdfIn PDF document text
  • http://fusheng-vietnam.vn/admin/webroot/upload/image/files/836947282.pdfIn PDF document text
  • https://ncvpte.in/userfiles/file/jotinoxoxidotugoti.pdfIn PDF document text
  • http://sbairs.com/datas/files/29734906060.pdfIn PDF document text
  • http://fred-robin.com/ckfinder/userfiles/files/41741059408.pdfIn PDF document text
  • https://natanashoes.com/kingkong/userfiles/files/251779007.pdfIn PDF document text
  • https://bikeid.net/ckfinder/userfiles/files/20172351022.pdfIn PDF document text
  • https://zippy-inc.com/app/webroot/userfiles/files/16589039550.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161394e9a96666---12929489852.pdfIn PDF document text
  • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/161324e8d8be84---bafabuvinipum.pdfIn PDF document text
  • http://www.findvoters.com/userfiles/file/91003477340.pdfIn PDF document text
  • http://firstcuwire.com/file_media/file_image/file/jabikarugu.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161316669d9a6a---zifewukulo.pdfIn PDF document text
  • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/637e392b580ba102a2933e4f481076bc/99167340003.pdfIn PDF document text
  • http://cuadepthanglong.com/images/ckeditor/files/gikupan.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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