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.
• 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://chcial.ru/uplcv?utm_term=textbook+of+therapeutic+exercises+pdf+download PDF link annotation

  • http://jump360.co/upload/files/20210622200854.pdfIn PDF document text
  • http://araonline.hu/uploads/file/81114488388.pdfIn PDF document text
  • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/hftji6nb8vdmu6ersj10m2qr00/27311035918.pdfIn PDF document text
  • https://binarbaid.com/public_html/userfiles/file/gidunusuxufe.pdfIn PDF document text
  • https://aquafilling.com/userfiles/file/94923127343.pdfIn PDF document text
  • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094a06e9c632---58983606244.pdfIn PDF document text
  • https://a1-recruitment.fr/v2011/Files/fck_upload/file/43012290237.pdfIn PDF document text
  • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b5b5a943747---88568730338.pdfIn PDF document text
  • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/6jgd9vjt2lmo0e15dn0hd7q3ls/49790003718.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a54aaa18fb9---45975804964.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160941b7cc4b0d---kivotikujoluzi.pdfIn PDF document text
  • https://ecableapp.com/FCKeditor/FCKimgUpload/file/81556337956.pdfIn PDF document text
  • http://rauvuonsach.com/images/uploads/files/56311222008.pdfIn PDF document text
  • http://dmychadla.eu/UserFiles/File/wufevijalusuzabowagod.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089d2128a78f---68877359116.pdfIn PDF document text
  • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/0b904bed4250311ef8f1d7c412896aca/zafagizabejasuvow.pdfIn PDF document text
  • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/416cb92e7498392c6e0c1ba56ca743a1/54677840922.pdfIn PDF document text
  • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160746bf9d3e6d---23146721478.pdfIn PDF document text
  • http://animationcoach.com/userfiles/file/15726741191.pdfIn PDF document text
  • http://3qlohas.com/CKEdit/upload/files/872069054.pdfIn PDF document text
  • https://mtmnetwork.net/uploadEditor/files/71932135450.pdfIn PDF document text
  • http://fogathajtohirek.hu/fckfiles/file/49301507414.pdfIn PDF document text
  • https://emotionalgift.com/ckfinder/userfiles/files/5941881311.pdfIn PDF document text
  • http://zechnerbau.at/images/content/files/34237118148.pdfIn PDF document text
  • http://palirna-frydek.cz/uploaded/file/55371394264.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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