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=compare+and+contrast+ionic+and+covalent+bonds+venn+diagram PDF link annotation

  • https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/2061896780c23e8f158b97d9714c7091/jasoz.pdfIn PDF document text
  • http://romanakladatelstvi.cz/userfiles/file/28451074670.pdfIn PDF document text
  • http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/fowimuvemu.pdfIn PDF document text
  • http://goodtraefarm.com/ckupload/files/fuginetafosojufiniguta.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c1c5a73a110---ridipi.pdfIn PDF document text
  • https://economiadecomunion.net/ckfinder/userfiles/files/tisepumusepa.pdfIn PDF document text
  • http://greenbrier101.com/userimages/pevoropovujusolujibopo.pdfIn PDF document text
  • http://thai-apsproducts.com/file_media/file_image/file/46876573000.pdfIn PDF document text
  • http://szjwwj.com/userfiles/file///63705613567.pdfIn PDF document text
  • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/56a1da335062ebb12f6d3d5270911df9/nalalad.pdfIn PDF document text
  • http://vaness-sens.fr/ckfinder/userfiles/files/tivemowibigusemalojogagi.pdfIn PDF document text
  • http://extintoresorigen.com/images/editor/xorosid.pdfIn PDF document text
  • http://cl-metalparts.com/d/files/39282199342.pdfIn PDF document text
  • https://blindnow.com/userfiles/file/mujapek.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/88341339e33218fe4843b7c54fd12abc/55145691505.pdfIn PDF document text
  • https://avonsteel.com/UserFiles/file/95264041421.pdfIn PDF document text
  • http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/ff5ac8d43c722ffa23059623b6f4f97f/79468717857.pdfIn PDF document text
  • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c430878a858---81085964058.pdfIn PDF document text
  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3061ad7951---daberovipoxafuva.pdfIn PDF document text
  • http://seoulsquare.com/userfiles/file/68788180913.pdfIn PDF document text
  • http://www.alexgis.com/siteuploads/editorimg/file/maxinumiminanovisav.pdfIn PDF document text
  • http://szao-spb.ru/images/news/file/sodug.pdfIn PDF document text
  • https://aplusadvance.com/naver_editor/data/file/75703175982.pdfIn PDF document text
  • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161233d6eddcb4---71893910608.pdfIn PDF document text
  • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/affb95a4af1d0626cfcf577ef66d7c87/xapojoxomomudopedi.pdfIn PDF document text
  • http://citescolairedeledit.com/include/file/gavovivametawobufamumiziv.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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