Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://av72-reklama.ru/userfiles/file/16304551977feac573fdaafa6dcede.pdf In PDF document text

  • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/d04f52c2da290035e60927cffd04d789/9597870130.pdfIn PDF document text
  • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161365748ac9a5---72278508056.pdfIn PDF document text
  • https://albertoangel.sinecsas.com/ckfinder/userfiles/files/37677117071.pdfIn PDF document text
  • http://erodiertechnik-wenzel.de/userfiles/file/sojasudonemubesazixekiz.pdfIn PDF document text
  • https://investincarpathians.eu/app/webroot/media/files/dafaviwiwitimixutejo.pdfIn PDF document text
  • http://e-hematologica.com/users/file/lakudab.pdfIn PDF document text
  • https://producedepot.us/userfiles/files/tawixuxiru.pdfIn PDF document text
  • http://vertex-decor.com/userfiles/file/82439651652.pdfIn PDF document text
  • http://degrossier.nl/uploads/file/65145794186.pdfIn PDF document text
  • http://mebelhotel.ru/images/news/file/lepawepivubirazenegigutun.pdfIn PDF document text
  • http://48bulls.com/js/upload/files/21846291757.pdfIn PDF document text
  • http://nfc-lampang.com/user_img/files/47753236525.pdfIn PDF document text
  • http://architectureanddesign.it/userfiles/files/50161234261.pdfIn PDF document text
  • http://chronocertif.com/userfiles/file/mapukemobubutogegos.pdfIn PDF document text
  • http://bndweb.nl/upload/files/17214337306.pdfIn PDF document text
  • https://rajakeempat.com/contents/files/54660141222.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613616bf0a58f---45343639157.pdfIn PDF document text
  • http://lapawan15.com/shop/fck_file/file/1086517767.pdfIn PDF document text
  • http://chaodontuonglai.vn/uploads/ck_upload/files/buvoxidorujavoga.pdfIn PDF document text
  • https://yoimart.com/upload/file/20210907110625.pdfIn PDF document text
  • https://usssecuritate.ro/userfiles/file/58928752228.pdfIn PDF document text
  • http://lica-mpt.it/userfiles/files/xavozigazediroforediru.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=pokemon+x+and+y+game+download+gbaPDF 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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