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
• 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
• 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://cructi.ru/uplcv?utm_term=android+screen+recording+snapchat PDF link annotation

  • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16132a7e5c765d---8672334449.pdfIn PDF document text
  • http://americandeliorder.com/uploads/files/47935996413.pdfIn PDF document text
  • http://studiopassarotti.it/userfiles/files/15785840630.pdfIn PDF document text
  • http://daiichibus.vn/uploads/news_file/36737085901.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcfadaaa88---47060430307.pdfIn PDF document text
  • https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/96023566143.pdfIn PDF document text
  • http://dungcucaytrong.com/images/files/jezuzanifowipex.pdfIn PDF document text
  • http://sukhonthip.com/file_media/file_image/file/luxafijinugufigude.pdfIn PDF document text
  • http://fornacedelia.it/userfiles/files/sakimudukuv.pdfIn PDF document text
  • https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/fidoxilijopokamagu.pdfIn PDF document text
  • http://www.culturehousesun.org/photos/file/mojuletumixigepunusa.pdfIn PDF document text
  • http://thermocomfort.ca/userfiles/file/fivogokidotimijiza.pdfIn PDF document text
  • http://gibisch.info/files/files/69489289459.pdfIn PDF document text
  • http://linpus.com/app/webroot/userfiles/files/44977613699.pdfIn PDF document text
  • http://himalayakebab.irafbrothers.com/shipinc/userfiles/files/tukidabujozegisili.pdfIn PDF document text
  • http://yeosingol.com/FileData/ckfinder/files/20210910_21966EC5FCD2E429.pdfIn PDF document text
  • http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/movotefosikupunuzij.pdfIn PDF document text
  • http://videlec.be/ressource/file/susob.pdfIn PDF document text
  • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/42rr3dq1194fnsrdlugevcf7vg/20797722714.pdfIn PDF document text
  • http://polaryachts.com/res/wysiwyg/file/zofotagugakepu.pdfIn PDF document text
  • http://riverside-plaza.com/upload/userfile/files/vejaforagutovosamorafoja.pdfIn PDF document text
  • http://maility.pl/_ADRESuserfiles/file/5545735895.pdfIn PDF document text
  • http://cluster006.ovh.net/~greeters/namur/ckfinder/userfiles/files/15211849471.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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