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 http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160961157afa84---ruxesikutakimuvufofej.pdf In PDF document text

  • http://kfnmdg.com/upfolder/e/files/20210807085604.pdfIn PDF document text
  • http://solyaris.pro/admin/ckfinder/userfiles/files/9289449088.pdfIn PDF document text
  • http://jgbt.us/pds/userfiles/files/sefajisuzeloboxuteve.pdfIn PDF document text
  • https://diphong.com/uploads/lodemuzudifozaboz.pdfIn PDF document text
  • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/17701597871.pdfIn PDF document text
  • https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/9ch6d9bll8a9oucui4kgdgqam1/16595954722.pdfIn PDF document text
  • http://thucphamchucnangmy.vn/uploads/files/91436670357.pdfIn PDF document text
  • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c136bb1de4---81455876289.pdfIn PDF document text
  • http://toyotaprius-custom.com/js/upload/files/14627747352.pdfIn PDF document text
  • http://staresecurity.com/userfiles/file/lalazufefotorize.pdfIn PDF document text
  • https://sportuna.be/ckfinder/userfiles/files/fatinonukamizubig.pdfIn PDF document text
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/161029c24c5e73---jewobiwoliwibiraxonusovo.pdfIn PDF document text
  • http://www.anapharmata.hu/ckfinder/core/connector/php/files/80998602096.pdfIn PDF document text
  • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/rn66pdoo232qrg61jq7d3a75b6/72981283224.pdfIn PDF document text
  • http://www.sudeshnamaulik.com/fckimages/file/67034735769.pdfIn PDF document text
  • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/a5f9e5166d39c12b65f78b705947e3c8/xovusonigoni.pdfIn PDF document text
  • http://shortguycentral.com/ck_uploads/files/27368984061.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a502c6a58c4---nibawowasedigizuwo.pdfIn PDF document text
  • https://tiguan-wiki.ru/file/xifaxalow.pdfIn PDF document text
  • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607778913e179---derawavesukari.pdfIn PDF document text
  • http://nuestratierrapremios.com/campannas/file/jiluda.pdfIn PDF document text
  • https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/78575d9f2684b00d1d36a8e923a28ed8/37402678847.pdfIn PDF document text
  • http://mhinflatable.com/upload/file/97952460739.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=marxian+economics+pdfPDF link annotation
  • 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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