Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://queure.ru/uplcv?utm_term=scan+qr+code+iphone+photo PDF link annotation

  • http://tachikawa-derma.biz/ckfinder/userfiles/files/63956762778.pdfIn PDF document text
  • http://studioarclab.eu/userfiles/files/dusexobazi.pdfIn PDF document text
  • https://floridagreatescape.com/media/file/wiwularupekelorudovo.pdfIn PDF document text
  • http://agrostroi-proekt.ru/ckfinder/userfiles/files/48129085353.pdfIn PDF document text
  • http://litho-and-co.fr/ckeditor/upload/files/bemamiji.pdfIn PDF document text
  • http://stainless-faucet.com/uploads/htmlupload/files/pegodadilobafidafuz.pdfIn PDF document text
  • http://luisacortesearchitetto.it/userfiles/files/31066161831.pdfIn PDF document text
  • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613396de66264---81184568823.pdfIn PDF document text
  • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/ec034d09ae066d4598d938430172941a/28102668553.pdfIn PDF document text
  • https://muachungbaohiem.com/uploads/userfiles/file/tikaje.pdfIn PDF document text
  • https://congchungnguyenlieu.vnpec.xyz/uploads/files/65079139607.pdfIn PDF document text
  • http://rockhouseschool.com/rockhouse/uploads/files/morolovubu.pdfIn PDF document text
  • https://rotterdampools.com/contents/files/sekel.pdfIn PDF document text
  • http://www.radanhorse.com/resource/files/80449134356.pdfIn PDF document text
  • http://gainliving.com/upload/editor/file/27084412958.pdfIn PDF document text
  • http://krevue.cz/UserFiles/File/nepedalazotemu.pdfIn PDF document text
  • http://khmim.com/ckfinder/userfiles/files/sawakozudoxigubokural.pdfIn PDF document text
  • http://amblesidewindermere.ca/fckuploads/images/file/93956183936.pdfIn PDF document text
  • http://prakseologia.eu/userfiles/file/lajedakefabatovan.pdfIn PDF document text
  • http://kfoodntea.com/dataroom/file/49847417124.pdfIn PDF document text
  • http://trungtamsangloc.vn/uploads/ck_upload/files/vuroxiwuduxumevukojavob.pdfIn PDF document text
  • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/b4e28dc2a7f392911621bd7254e6a425/95726387767.pdfIn PDF document text
  • http://hzbmsj.net/images/upload/File/83660737687.pdfIn PDF document text
  • http://kanomax-nsk.ru/images/konoxew.pdfIn PDF document text
  • http://biosystech.com/pdsFck/file/80467577240.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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