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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://el-tall.pl/pics/file/35534078107.pdf In PDF document text

  • http://identik.hu/editor_up/fipewazuxufegalub.pdfIn PDF document text
  • http://skpizzasubs.com/uploads/files/wekototanomowinanufika.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/87484139042.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b9cad9824b---492521733.pdfIn PDF document text
  • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613fff495ee57---5345514637.pdfIn PDF document text
  • http://www.saito-ken.jp/userdata/file/83081451106.pdfIn PDF document text
  • http://af.ssla.ru/images/fornews/files/52185454271.pdfIn PDF document text
  • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161390fc1061b4---gavaletoloxadadeg.pdfIn PDF document text
  • https://jucariicopilasi.ro/app/webroot/files/userfiles/files/tatakume.pdfIn PDF document text
  • http://likebarcode.com/image/files/20210907_184622.pdfIn PDF document text
  • http://malir-naterac.info/UserFiles/File/mijefoxudin.pdfIn PDF document text
  • https://ijpdua.com/contents/files/sulinusemipilu.pdfIn PDF document text
  • http://tccsrl.org/userfiles/files/lelexogaredazamolojux.pdfIn PDF document text
  • https://derechosenred.org/aym_image/files/76009353476.pdfIn PDF document text
  • http://cgl.lu/userfiles/files/92730768008.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16141387d78f84---55307191047.pdfIn PDF document text
  • http://taiwangallant.com/uploads/files/202109011321173562.pdfIn PDF document text
  • https://scalper.ir/data/files/file/lisujadek.pdfIn PDF document text
  • https://ooo-kenk.ru/userfiles/file/nawon.pdfIn PDF document text
  • http://posekatzahradu.cz/files/file/15733934960.pdfIn PDF document text
  • http://khachsansapa.vn/webroot/img/files/dukoxutovam.pdfIn PDF document text
  • http://sushrutproctology.org/ckfinder/userfiles/files/83223335482.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=android+wekkerradio+appPDF link annotation
  • https://rt9.rspo.org/ckfinder/userfiles/files/46377834601.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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