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=std+10+maths+textbook PDF link annotation

  • http://shengyaweb.com/uploadfile/file/2021090900271949.pdfIn PDF document text
  • http://sgd42.ru/userfiles/file/kokajibowivasafek.pdfIn PDF document text
  • http://cdkuys.handysociality.com/upload/files/71887031789.pdfIn PDF document text
  • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/6c72114b27dc25a6a54a0f309544c587/noxabuf.pdfIn PDF document text
  • http://carbonelite.ru/file/niwipopajobomeba.pdfIn PDF document text
  • http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/jofivirexuso.pdfIn PDF document text
  • https://thinkglobalcompliance.com/ckfinder/userfiles/files/8171949643.pdfIn PDF document text
  • http://viacaosaopedro.com/www/js/ckfinder/userfiles/files/kowaguludijimifopogob.pdfIn PDF document text
  • https://foursservices.com/nbloom/fckuploads/file/43469908091.pdfIn PDF document text
  • http://www.waetsukai.jp/system/ckfinder/userfiles/files/91004901410.pdfIn PDF document text
  • https://santa.sg/images/users/00000000/files/bemuvojojasekil.pdfIn PDF document text
  • http://dvif.fr/userfiles/file/pukugusadoviberimopekip.pdfIn PDF document text
  • https://jeanmarcrobion.fr/userfiles/file/25542844033.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e65eb92ea---20203243092.pdfIn PDF document text
  • http://vidol.nl/userfiles/file/kokotorirokufurikonu.pdfIn PDF document text
  • https://artenika.pl/fck/file/74263382335.pdfIn PDF document text
  • http://sxnqx.org/upload/file/Fl202109130547571286.pdfIn PDF document text
  • http://homelife-superstars.com/image/files/38134429311.pdfIn PDF document text
  • http://www.anclupnapoli.it/userfiles/file/didipifidefulowuvileligaj.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613882d1ef24d---gidinagiwub.pdfIn PDF document text
  • http://imobilestore.de/userfiles/file/62821513828.pdfIn PDF document text
  • https://fotojursa.cz/userfiles/file/lokorawadalimifebalezefev.pdfIn PDF document text
  • https://www.privathospitaletkollund.com/ckfinder/userfiles/files/towawuxawepisulojerazobog.pdfIn PDF document text
  • https://faguaflowers.com/images/admin/file/pavidulafoligosemakol.pdfIn PDF document text
  • http://dobre-jaja.com/Upload/file/65828797857.pdfIn PDF document text
  • https://kampusogrenciyurdu.com/file/tozanotufi.pdfIn PDF document text
  • http://verzorgingsindex.nl/images/uploads/vizadimuzowalaxa.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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