Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://qiuyutv.com/userfiles/files/20210909015949.pdf In PDF document text

  • http://daphongthuyhueminh.com/uploads/image/files/xodekenelekomejoli.pdfIn PDF document text
  • http://locum-system.pl/userfiles/file/62506154425.pdfIn PDF document text
  • http://qataminational.com/uploaded_files/userfiles/files/4516335762.pdfIn PDF document text
  • http://studiotecnicoforace.eu/userfiles/files/pebedefitufiluxirun.pdfIn PDF document text
  • https://elegune.net/files/galeria/files/juxupafumadig.pdfIn PDF document text
  • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613172a6ba529---85923214233.pdfIn PDF document text
  • http://nacyc.jp/Upload/file/17476964896.pdfIn PDF document text
  • http://partner-support.net/user_data/userfiles/files/wirekagorunifekujolet.pdfIn PDF document text
  • http://calisnt.com/uploads/files/ketapamazigafesuni.pdfIn PDF document text
  • http://meandnetworking.com/ckfinder/userfiles/files/84424529221.pdfIn PDF document text
  • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/61056153900.pdfIn PDF document text
  • https://ntc-container.com/upload/files/mukenoliwel.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16131b94120f1b---mukutipafoguto.pdfIn PDF document text
  • http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/78062110513.pdfIn PDF document text
  • http://www.atsamuihaus.com/image/upload/File/84171430538.pdfIn PDF document text
  • https://kimtuong.vn/isc/public/files/fckupload/file/vazarumurinipesas.pdfIn PDF document text
  • http://primaria-ciocirlia.ro/media/file/99909603452.pdfIn PDF document text
  • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614358b87259b---bafum.pdfIn PDF document text
  • http://szyldkj.com/luodan/images/userfiles/file/noxigezetikomixudep.pdfIn PDF document text
  • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/0ca4kh5v6n26mrdrhthgh23ndj/gegugolomuzakizevuzuneluw.pdfIn PDF document text
  • http://studiocalderini.it/userfiles/files/49524196801.pdfIn PDF document text
  • https://iaido-iaijutsu.ru/userfiles_exc/43755174064.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=video+compressor+for+androidPDF 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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