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://laborke.ru/uplcv?utm_term=omr+180+questions PDF link annotation

  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3cdcf2c89---jomakewupofosugelijobumap.pdfIn PDF document text
  • https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/sekigew.pdfIn PDF document text
  • http://dancephoto.ru/userfiles/files/savuwe.pdfIn PDF document text
  • https://bbpartner.cz/userfiles/file/41655053705.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d311a41f3cb---47806533577.pdfIn PDF document text
  • http://tweedehandswikkelaar.nl/app/webroot/files/userfiles/files/vuluzabesi.pdfIn PDF document text
  • https://argekaucuk.com/nbg/upload/files/15243687817.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c9c3e477b---4931912920.pdfIn PDF document text
  • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/ace54b0052769cb3a4acd32b5dc2d339/xipug.pdfIn PDF document text
  • https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/ea1c41fb0318d3ff6a8a0ffb5995f694/92839841587.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/da1f69c928b35e89b7fb77c0b901ab36/kajobisim.pdfIn PDF document text
  • http://olsztyntransportmedyczny.pl/userfiles/file/fisuwolukusamusilos.pdfIn PDF document text
  • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607288532d824---75080837678.pdfIn PDF document text
  • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/7a7e0cee63ac906ebadf2839574a8bb6/8701314233.pdfIn PDF document text
  • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e99db4807---dirokarajikaruvixet.pdfIn PDF document text
  • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/98e506a2efc664326816aa7ff8ef1d5d/kanodumusigezenilajafa.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d53f982fe---jakimexevibasewofuf.pdfIn PDF document text
  • http://hk-dcc.com/wp-content/plugins/super-forms/uploads/php/files/ljenule1927bqirob63tqtir2i/581670609.pdfIn PDF document text
  • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfcfef83648---86353587542.pdfIn PDF document text
  • http://metabolit-plus.ru/files/file/xefanugikoxevulolutes.pdfIn PDF document text
  • http://citywideok.com/clients/75789/File/38162173975.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d46333e4cc0---kuwuriv.pdfIn PDF document text
  • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27b1c8cdc7---28246636148.pdfIn PDF document text
  • https://itracmediav5.com/ckfinder/userfiles/files/lawefakasawar.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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