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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://pistant.ru/uplcv?utm_term=xiaohan+pub+app+android PDF link annotation

  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e8a4b82509---7287675469.pdfIn PDF document text
  • http://shangrilatheshow.com/ckfinder/userfiles/files/27365988586.pdfIn PDF document text
  • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb8c3555cd---788053289.pdfIn PDF document text
  • http://iact2001.com/userData/board/file/rexerewelunodipefewugoku.pdfIn PDF document text
  • http://www.trisad.kz/ckfinder/userfiles/files/natal.pdfIn PDF document text
  • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/21a3a62beaf6524caebd1b2d1f2425b0/94501182511.pdfIn PDF document text
  • http://liveisagenix.com/ckfinder/userfiles/files/14788721031.pdfIn PDF document text
  • http://www.yeosung21.or.kr/ckfinder/userfiles/files/1631411808.pdfIn PDF document text
  • http://brianhaymore.com/images/e/file/sedepupiforoniwalukuxexi.pdfIn PDF document text
  • http://scuderia512.com/js/upload/files/81593559925.pdfIn PDF document text
  • http://zensushidanapoint.com/uploads/files/43012141101.pdfIn PDF document text
  • http://wksystems.net/HotelEstimator/userfiles/file/96015920256.pdfIn PDF document text
  • https://vcvscr.cz/www/www/fckphotos/file/tusoposupeza.pdfIn PDF document text
  • http://aptwash.com/userData/ebizro_board/file/3846387030.pdfIn PDF document text
  • http://mxag.com/upload/browse/file/52723232937.pdfIn PDF document text
  • http://linker-apps.com/files/vanodamig.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac99e0fb35---mimilatilo.pdfIn PDF document text
  • http://jmdfhjl.com/fckeditor/userimages/file/19954060747.pdfIn PDF document text
  • http://actinq.nl/upload/file/39904734834.pdfIn PDF document text
  • https://jordan.si/dokumenti/file/jezukif.pdfIn PDF document text
  • http://gps-ambroisie.com/ressource/site-image/files/10561137595.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614062288fe53---53454048140.pdfIn PDF document text
  • https://domilot.com/uploader/files/30976695380.pdfIn PDF document text
  • http://rund.cz/UserFiles/File/43564277627.pdfIn PDF document text
  • http://rosritual.su/app/webroot/js/ckfinder/userfiles/files/24788884036.pdfIn PDF document text
  • https://bselink.com/userfiles/file/4023579352.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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