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://nomylo.ru/uplcv?utm_term=how+to+change+ringtone+messenger PDF link annotation

  • http://studioesflores.pl/obrazy/file/69433750771.pdfIn PDF document text
  • http://studiopiergentili.it/userfiles/files/65648193181.pdfIn PDF document text
  • http://besttailor.info/ckfinder/userfiles/files/79018074633.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16139dab7d7cde---gofala.pdfIn PDF document text
  • http://powercleanperu.com/cms_powerclean_2015/sgi_userfiles/userfiles/files/dazidasuriridivinijev.pdfIn PDF document text
  • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/1ef6f5f0f3395ec09b49beb37eb0a302/ludeduzozune.pdfIn PDF document text
  • http://jkbprivateiti.com/userfiles/file/89990118042.pdfIn PDF document text
  • http://garageanything.com/js/upload/files/93406809040.pdfIn PDF document text
  • http://jowinbio.com/upload/files/202109120122473375.pdfIn PDF document text
  • https://austdoorcaocap.com/upload/files/81245298316.pdfIn PDF document text
  • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/h727ip5n77jjm0s8n8ell8h67e/tuberivadevigawe.pdfIn PDF document text
  • http://shriadinathbank.com/uploads/fudipapi.pdfIn PDF document text
  • http://bakefruit.com/uploads/files/202109052019012842.pdfIn PDF document text
  • https://enerjimakine.com/tsrm1/img/userfiles/file/bixunixajodufumalexoxekeb.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401d505eff6---26732783060.pdfIn PDF document text
  • http://kaitosushisb.com/uploads/files/87689070403.pdfIn PDF document text
  • http://mediasingrid.com/js/new/fckeditor/userfiles/file/7173874268.pdfIn PDF document text
  • https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/72388683015.pdfIn PDF document text
  • https://allegypttours.net/userfiles/files/voxituvuxenelete.pdfIn PDF document text
  • http://www.salac.cz/ckfinder/userfiles/files/68225909465.pdfIn PDF document text
  • http://www.injamal.es/nueva/ckfinder/userfiles/files/49074900850.pdfIn PDF document text
  • https://kiptep.ru/file/fenagozejitakejipeku.pdfIn PDF document text
  • http://nguyenxuanhuong.com/upload/files/83569811108.pdfIn PDF document text
  • http://pickup-ws.com/userfiles/files/likikanano.pdfIn PDF document text
  • https://groupunsur2.com/contents/files/bovuteg.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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