Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://queure.ru/uplcv?utm_term=nozzles+nptel+pdf PDF link annotation

  • http://banner-ever.com/ckImg/files/bupepusuwalebewukuki.pdfIn PDF document text
  • http://finara-v.com/file_media/file_image/file/31356496436.pdfIn PDF document text
  • https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/0664d2f6724c69a882d1f19d306be8c1/93533210476.pdfIn PDF document text
  • https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/d1d86a4ecdc84dbf2bf0275d059cfd3f/94481625927.pdfIn PDF document text
  • http://ongnuocdenhat.com/upload/files/47031040289.pdfIn PDF document text
  • http://wawabed.pl/uploads/userfiles/file/59209036265.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160756f10e8533---18714297175.pdfIn PDF document text
  • http://bibrka-school.org.ua/ckfinder/userfiles/files/xipowixafibefu.pdfIn PDF document text
  • http://pinzimoniofiumicino.eu/userfiles/files/menar.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c6593be36b2---riwigonoxomok.pdfIn PDF document text
  • https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/k1n4o2b16r9scob5kk3ahqq280/54063159965.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16072da3ea4770---duman.pdfIn PDF document text
  • http://studioguidobarbieri.it/userfiles/files/61804142780.pdfIn PDF document text
  • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abb40316b34---nuvulebumuxexarowezeva.pdfIn PDF document text
  • http://gymostrov.org/gymostrov/userfiles/file/89250772270.pdfIn PDF document text
  • http://guilfordvikingsclassof81.com/clients/4/47/479b0a304b4cdce99dfe3eda73a59016/File/lusukebobefimufubutimeni.pdfIn PDF document text
  • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607955a02f730---wuditeniz.pdfIn PDF document text
  • http://fobas.cz/userfiles/file/febixafowa.pdfIn PDF document text
  • https://imad0c0.com/js/ckfinder/userfiles/files/57023963444.pdfIn PDF document text
  • http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b32bf3f2e---96419536897.pdfIn PDF document text
  • http://www.s-prom.si/fileupload/file/zazikulijefabobiposol.pdfIn PDF document text
  • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8ef5d152c---fivogosina.pdfIn PDF document text
  • http://pfmconsulting.org/survey/userfiles/files/nomawafijaperojeril.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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