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.
• 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 https://crewmak.ru/uplcv?utm_term=unreal+engine+4+c%2B%2B+pdf PDF link annotation

  • http://nbkhjc.com/uploads/202108/file/210817084741989621m1u0s4nggzvt.pdfIn PDF document text
  • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c67f581329b---xepemevez.pdfIn PDF document text
  • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/a6fbguibkkr6kc3qorel8nlmguj2tcst/kegade.pdfIn PDF document text
  • http://alompar.hu/uploads/content_files/files/lopedomimivekuxak.pdfIn PDF document text
  • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/193f5eae2c3b37b9d118c78158f58d2b/60225205935.pdfIn PDF document text
  • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c2c3f5d90217aa4ebc16dfe0bda82add/woralamu.pdfIn PDF document text
  • http://faithleader.org/js/ckfinder/userfiles/files/63421145778.pdfIn PDF document text
  • http://cnpair.com/userfiles/file/29674465886.pdfIn PDF document text
  • http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/2107160925566806575f233n.pdfIn PDF document text
  • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1276f87984---48021741696.pdfIn PDF document text
  • http://webinaris.org/ckfinder/userfiles/publics/files/78953091447.pdfIn PDF document text
  • https://robert-zauer.cz/userfiles/file/xokikijinowerasixapanezu.pdfIn PDF document text
  • http://xn--80aab8aioy.xn--p1ai/userfiles/file/28179961827.pdfIn PDF document text
  • https://fontaine-eva.fr/userfiles/files/minakanupar.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608bce60b7668---35816401598.pdfIn PDF document text
  • https://pezenasenchantee.fr/userfiles/file/mudavikim.pdfIn PDF document text
  • http://abogarestudio.com/userfiles/file/8660022876.pdfIn PDF document text
  • http://provia-events.de/pics/fotos/1/file/96731299534.pdfIn PDF document text
  • http://xn--2vxr09c6mc.tw/CKEdit/upload/files/30864830689.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075d498693ab---56461960451.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/sltg11mp6kisd8hr5l6k1r2qe1/11262861440.pdfIn PDF document text
  • http://stellamaris.cz/userfiles/pojevepefitole.pdfIn PDF document text
  • http://cnkls.com/userfiles/file/1623781358.pdfIn PDF document text
  • https://agrilaui.com/userfiles/file/29287546512.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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