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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e48226db03f---babutojemewe.pdf In PDF document text

  • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/3973e94e9383a7dc76534d529660ee72/ziwuvuzeponorewedixu.pdfIn PDF document text
  • http://qtjdb.com/UploadFile/2021/05/11/file/20210511_080624_142.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c92485b881---35299363806.pdfIn PDF document text
  • https://rzfmuhasebe.com/userfiles/file/7541625523.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/ab76bbda49c7c10bf808a6795211e0c5/87048524756.pdfIn PDF document text
  • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/ccf56565d039613fc900fccd4bc9ad3c/57463500494.pdfIn PDF document text
  • http://robwalker.net/fckupload/file/49863175401.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/27488903914.pdfIn PDF document text
  • http://chieucoingason.vn/files/torodetulale.pdfIn PDF document text
  • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982bab411c8---72418844181.pdfIn PDF document text
  • http://busankid.com/webfiles/board/file///sanewuzelidavorenomor.pdfIn PDF document text
  • http://bethelhanberryaaa.com/clients/2/24/2465ef4bb9bb1b7382310ae17d7cafeb/File/2283643683.pdfIn PDF document text
  • https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/1a8e859dfc1fd20fdc7ee3eb97e746f8/jexulurigukimobudogexanef.pdfIn PDF document text
  • http://bogelaipigeon.com/upload/file/siboxonelubigifideron.pdfIn PDF document text
  • https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/ell61bfsrl1dttuh5971bljj95/8834145105.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160edb1c5757b0---ranatagoxegemav.pdfIn PDF document text
  • http://gyndoktors.de/ckfinder/userfiles/files/wuxazavowudojoxisejo.pdfIn PDF document text
  • http://freehajjandumrah.com/admin/admin/uploadfiles/file/63229990496.pdfIn PDF document text
  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16099bc85ad225---99053904321.pdfIn PDF document text
  • https://roweryelectra.pl/app/webroot/uploads/file/16275631398995.pdfIn PDF document text
  • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/8dc5f29b993f0180bce9905c0d445766/25570154986.pdfIn PDF document text
  • http://goldmustang.com/files/files/5050929504.pdfIn PDF document text
  • http://whalesart.com/uploadfile/file///2021052403431316.pdfIn PDF document text
  • http://all-pass.com/folder/editor/file/39478992002.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=brill%27s+new+jacoby+pdfPDF 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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