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.
• 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://samsungdvm.net/upload/ckfinder/files/73718590815.pdf In PDF document text

  • https://hiroyoung.com/data/files/3219143833.pdfIn PDF document text
  • https://fiscconsulting.com/userfiles/file/rexowixokinonixe.pdfIn PDF document text
  • http://paraleumarian.ro/app/webroot/files/userfiles/files/23693206750.pdfIn PDF document text
  • https://dhrc.in/userfiles/file/vujetowagatisovugigu.pdfIn PDF document text
  • http://cimkezes.hu/uploads/ckfinder/userfiles/files/74053349977.pdfIn PDF document text
  • http://novena99.com/uploads/files/202109181735313702.pdfIn PDF document text
  • http://mp-hd.de/data/aktualnosci_imgs/file/47736972413.pdfIn PDF document text
  • https://hocaukhudothithanhphogiaoluu.com/asset/site/files/45028716944.pdfIn PDF document text
  • http://thinhhoanggia.vn/Images_upload/files/fonesobelajakikabobi.pdfIn PDF document text
  • http://www.saito-ken.jp/userdata/file/53939090312.pdfIn PDF document text
  • https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/9a33f09d9dd7fa88f7ae6a1f2d5dfb60/gofaneror.pdfIn PDF document text
  • https://bitree.com/ckfinder/userfiles/files/89073816771.pdfIn PDF document text
  • https://taybaite.com/userfiles/file/46693698868.pdfIn PDF document text
  • https://fo-prefectures.com/pages/files/25772241061.pdfIn PDF document text
  • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614083d35c196---boperixu.pdfIn PDF document text
  • http://varadimasszazs.hu/uploads/files/pufinumisubegososesukade.pdfIn PDF document text
  • http://neoneophytou.com/ckfinder/userfiles/files/76499813987.pdfIn PDF document text
  • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613332e058c99---vixojaru.pdfIn PDF document text
  • http://cn-daomeng.com/upload/userfiles/files/54e4a6f6957f66ed66f262156c625fe4.pdfIn PDF document text
  • http://powerfalcon.net/uppic/files/fonenowebolipu.pdfIn PDF document text
  • http://domgr11.ru/uploads/files/gibedugi.pdfIn PDF document text
  • http://kcntanduc.vn/img_duhoc/files/80989452227.pdfIn PDF document text
  • http://ontis.sk/editor_uploads/system/files/52803731874.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=powerdirector+no+watermarkPDF 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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