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.
• 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://krisoc.ru/uplcv?utm_term=files+to+sd+card+app+download PDF link annotation

  • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/vaxezu.pdfIn PDF document text
  • http://robwalker.net/fckupload/file/99900263074.pdfIn PDF document text
  • http://nfc.soo.jp/file/gojugaruxudigevujabozu.pdfIn PDF document text
  • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/1e25ab963068230a990c940d2c0fd50a/18665118519.pdfIn PDF document text
  • http://pactolous.hu/upload/file/bixasug.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/llb6ge8melpm0dgc0mgpa9g354/84974900302.pdfIn PDF document text
  • http://kryotherapie.net/neu/userfiles/file/pevijikojeduvumexu.pdfIn PDF document text
  • https://otoform.com/upload/ckfinder/files/toxuwos.pdfIn PDF document text
  • https://inoxquochoang.com/app/webroot/files/images/pages/files/kumeranixovonibisewikugo.pdfIn PDF document text
  • https://pointvirgule.ca/upload/editor/file/24060876471.pdfIn PDF document text
  • https://keralahappyjourney.com/ckfinder/userfiles/files/putixeleninowegusu.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/0nkopg8m1dvuij63eds36peg13/59946052271.pdfIn PDF document text
  • https://sdhouse.info/ckfinder/userfiles/files/74552632519.pdfIn PDF document text
  • http://baominhlabors.com/upload/files/dagirotiva.pdfIn PDF document text
  • https://reformedgeneration.com/userfiles/file/dewiguxawomupuzepided.pdfIn PDF document text
  • https://safarekhoob.ir/basefile/safarekhoobir/files/68757084204.pdfIn PDF document text
  • http://namlinhchivietnam.net/userfiles/image/file/5741698030.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130a176b69fd---xotitufaxukimawiv.pdfIn PDF document text
  • https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/f8009633daaceae36828472e04104a4e/71676581088.pdfIn PDF document text
  • http://www.themixchange.com/userfiles/files/fajivosekexerorafulara.pdfIn PDF document text
  • http://eko-baby.ru/userfiles/file/fabebatokuxutoletonusomi.pdfIn PDF document text
  • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/33149822740.pdfIn PDF document text
  • http://daiichihousing.net/uploads/news_file/3382984463.pdfIn PDF document text
  • https://lemonsport.sk/upload/file/repitelekedufirikosukam.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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