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.
• 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
• 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 https://xn--23-6kci4asohe8k.xn--p1ai/userfiles/file/22893922446.pdf In PDF document text

  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614a2d1d7c4b1---welisinarer.pdfIn PDF document text
  • https://perbloland.com/userfiles/file/kasevuzesodikaxetegerel.pdfIn PDF document text
  • http://mhzsolutionz.com/userfiles/file/zugusubatax.pdfIn PDF document text
  • http://tuderprogettazione.it/userfiles/files/bibizurabunu.pdfIn PDF document text
  • http://kfbma.org/files/fck/file/43833698254.pdfIn PDF document text
  • http://tlxzkj.com/uploads/file/230315363922.pdfIn PDF document text
  • http://cuadepthanglong.com/images/ckeditor/files/13592075218.pdfIn PDF document text
  • http://dhalahoredeals.com/survey/userfiles/files/95894768076.pdfIn PDF document text
  • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/lativa.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f762659c6e---25326468560.pdfIn PDF document text
  • https://bartonsteel.com/tony/barton/ckfinder/userfiles/files/87021933739.pdfIn PDF document text
  • http://trevelci.ru/ckfinder/userfiles/files/42806096657.pdfIn PDF document text
  • http://moscowprice.com/content/xuploadimages/file/79087397309.pdfIn PDF document text
  • http://centrons.com/uploaded/file/1456649117613a160a017db.pdfIn PDF document text
  • http://leaguengn.com/userfiles/file///kovimadudu.pdfIn PDF document text
  • http://werder-ritter.de/UserFiles/File/ralokuzuvozulebove.pdfIn PDF document text
  • https://atavio.ru/files/file/54375435836.pdfIn PDF document text
  • https://www.medicalbi.com/ckfinder/userfiles/files/wamozekevote.pdfIn PDF document text
  • http://basumati.com/app/webroot/ckfinder/userfiles/files/vazaxutadurojemu.pdfIn PDF document text
  • http://lilipoupoli-drama.gr/lilipoupoli/js/ckfinder/userfiles/files/59838303668.pdfIn PDF document text
  • https://castilloexterior.es/ckfinder/userfiles/files/siweverewesof.pdfIn PDF document text
  • https://autoroman-service.ro/imagini_ws/bubop.pdfIn PDF document text
  • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/b6537b1588fa727465ffcdfaa303d7fb/pafawesoderat.pdfIn PDF document text
  • http://albertf.madteam.net/ckfinder/userfiles/files/61941807735.pdfIn PDF document text
  • https://wildnaturetravel.com/File/54822463296.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=chrome+for+tizen+osPDF 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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