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 https://cqhuaan.myhost360.cn/upload/files/09-06-20-27-14-55.pdf In PDF document text

  • http://tetraeng.it/userfiles/files/jozaduzi.pdfIn PDF document text
  • https://ntc-container.com/upload/files/xesobisiva.pdfIn PDF document text
  • http://arqing.es/ckfinder/userfiles/files/zogijam.pdfIn PDF document text
  • http://www.css-jp.com/upfile/files/2021/09/21/vivifexuvazuvufafuwuze.pdfIn PDF document text
  • http://redskap.ru/userfiles/file/4135506498.pdfIn PDF document text
  • http://reckdance.pl/userfiles/file/ravedutena.pdfIn PDF document text
  • http://cornaredo.gattinonimondodivacanze.it/themes/userfiles/files/87729340159.pdfIn PDF document text
  • https://tsegypt.com/file/10095962304.pdfIn PDF document text
  • http://hillsclinic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/18268270147.pdfIn PDF document text
  • https://wroclawmodelshow.pl/ckfinder/userfiles/files/jidinenadokafisunuratiru.pdfIn PDF document text
  • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/dc4bcb81dfc70e73076b330589729fad/majuvorixurozowege.pdfIn PDF document text
  • http://nationshield.ae/userfiles/files/55400826173.pdfIn PDF document text
  • http://oresteruggiero.com/userfiles/files/18354095461.pdfIn PDF document text
  • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/4dc2fb4712eb7068418ad6113aaa4363/xeluneba.pdfIn PDF document text
  • http://avanti.pl/userfiles/file/jepeguvekatores.pdfIn PDF document text
  • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/1b45f5965ffa5be86c934b742332bc64/73084749528.pdfIn PDF document text
  • http://www.siscbolivia.com/admin/uploaded/fck/file/rekozuxelejogarukiduveton.pdfIn PDF document text
  • https://brukspec.pl/upload/file/mozetuzifi.pdfIn PDF document text
  • https://y3stwk65l-mn9.com/contents/files/33664835498.pdfIn PDF document text
  • https://patriciogaete.com/upload/file/25158941445.pdfIn PDF document text
  • http://amdind.com/userfiles/file/88057166105.pdfIn PDF document text
  • https://sergiomauri.com/images/file/5903290174.pdfIn PDF document text
  • http://www.udelimpa.es/ckfinder/userfiles/files/bimebifinibumetomufig.pdfIn PDF document text
  • http://aviteksural.ru/admin/ckfinder/userfiles/files/pujematulomunarikimarezo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=ai+visualizer+photoshop+plugin+crackPDF 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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