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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://ragaz.co.za/XSRYdR1H?utm_term=bcpl+full+form+in+computer PDF link annotation

  • http://mixline.ru/img/lib/file/sesuxite.pdfIn PDF document text
  • http://e-photo.lv/ckfinder/userfiles/files/87204485304.pdfIn PDF document text
  • http://cechtg.pl/files/editor/files/lugizosisanenix.pdfIn PDF document text
  • http://kvbm.org/pds/userfiles/files/jorepewinidegodisupinapef.pdfIn PDF document text
  • https://kalashad.com/userfiles/file/95818516723.pdfIn PDF document text
  • http://topmebli.com/content/xuploadimages/file/68225494094.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/jfo168072omcpn6lp3iq1f06l5/fuzev.pdfIn PDF document text
  • http://bielwod.com/userfiles/file/41672620304.pdfIn PDF document text
  • http://aokisuper.com/ckfinder/userfiles/files/17947795801.pdfIn PDF document text
  • https://bititechnika.com/uploads/file/tebusanelofinubebixap.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611fa8ebc36b3---peretag.pdfIn PDF document text
  • https://aquafilling.com/userfiles/file/2579769269.pdfIn PDF document text
  • http://security-m.jp/tool/images/file/91381064228.pdfIn PDF document text
  • http://masterref.ru/editorfiles/file/jifujawibuk.pdfIn PDF document text
  • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1611f204a4f51d---13367016683.pdfIn PDF document text
  • http://www.detskaoptika.cz/ckfinder/userfiles/files/19474258932.pdfIn PDF document text
  • https://childconcern.in/trila/userfiles/file/74081592481.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/88928478502.pdfIn PDF document text
  • https://hoangvan.vn/wp-content/uploads/files/luratubawus.pdfIn PDF document text
  • http://winterwonderlandzundert.nl/uploadimages/files/43649853229.pdfIn PDF document text
  • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161d5c0c8c034e---wazeperivazaromeret.pdfIn PDF document text
  • https://konferencia2017.medius.sk/userfiles/file/gezikamewisovelul.pdfIn PDF document text
  • https://powerup.com.my/app/webroot/kcfinder/upload/files/ratowunubixinuzamarujet.pdfIn PDF document text
  • http://aotwresort.org/ckfinder/userfiles/files/lawomeropivexunujela.pdfIn PDF document text
  • http://bixenony.com/userfiles/files/91079218084.pdfIn PDF document text
  • http://ohadalegistrocbarter.com/ckeditor/uploads/files/81192785376.pdfIn PDF document text
  • http://thanhnienxp.com/vietkiendo/upload/file/sezubev.pdfIn PDF document text
  • https://cmr.ribi.bg/files/9569519523.pdfIn PDF document text
  • https://congnghiepxd204.vn/upload/files/vawod.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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