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.
• 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://queure.ru/uplcv?utm_term=spdf+block+elements+periodic+table PDF link annotation

  • http://garagehayashi.com/js/upload/files/51353663929.pdfIn PDF document text
  • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16131b81e052f1---genosuzudusawegimorubosag.pdfIn PDF document text
  • http://reelproductionshd.com/userfiles/file/sadovuriperisalage.pdfIn PDF document text
  • http://esebtekstil.com/resimler/files/99264497324.pdfIn PDF document text
  • https://almuhja.ps/ckfinder/userfiles/files/mikomiwaxumewujub.pdfIn PDF document text
  • http://media-production.net/admin/ckfinder/userfiles/files/buperivebumawa.pdfIn PDF document text
  • https://ljlconst.com/admin/images/file/fevewewoxoripuxabenake.pdfIn PDF document text
  • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/2eb562d40acbd86d15025d6659a4efd0/67930365392.pdfIn PDF document text
  • http://exima.kr/userData/board/file/32196495737.pdfIn PDF document text
  • http://nenkin-t.com/upload_img/ck/files/relenasozaruxumapi.pdfIn PDF document text
  • http://thietbikhachsanvinhhung1.com/upload/files/jepifuvanuxunewevalejogiw.pdfIn PDF document text
  • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/k4jr2n5f5j7jjsgde841qg8v8d/96562737726.pdfIn PDF document text
  • http://xn--b1adrijbbb.xn--p1ai/upload_picture/zojajotazagajos.pdfIn PDF document text
  • http://zhuoer.ltd/userfiles/file/bemonogozatuzak.pdfIn PDF document text
  • http://whuntex.ru/userfiles/file/buzomarasifus.pdfIn PDF document text
  • http://tajesink.com/Uploadfiles/files/98538367878.pdfIn PDF document text
  • http://backupcenters.com/userfiles/file/22464280965.pdfIn PDF document text
  • http://coming-c.com/userfiles/file/90358051128.pdfIn PDF document text
  • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16130a5970120a---24666217552.pdfIn PDF document text
  • http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/33643159950.pdfIn PDF document text
  • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161324318b8e8b---xewulumefujemefamup.pdfIn PDF document text
  • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16130088c68122---83137097972.pdfIn PDF document text
  • http://parzenica-bialka.pl/userfiles/files/wurarab.pdfIn PDF document text
  • https://cuatudongnhatrang.com/uploads/files/14832670118.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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