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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 71 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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.
• 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://crysiq.ru/uplcv?utm_term=what+is+the+least+common+multiple+of+2+3+4+5+6+7+and+8 PDF link annotation

  • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607788ad27070---84269398295.pdfIn PDF document text
  • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/974c389f77ce719fa74fd0dc5c3b5c13/tapivafitilavesipavidu.pdfIn PDF document text
  • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608b51901d18f---varufiv.pdfIn PDF document text
  • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/vipekdq6l2l26joi6o84rnitc0/zufoteve.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fa103802d20---naxaduv.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/13580002086.pdfIn PDF document text
  • https://branchennachweis.eu/userfiles/file/fezokorumaxoxawibepajuf.pdfIn PDF document text
  • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16071d1a6f0ff6---72874500687.pdfIn PDF document text
  • https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/80f9b9229685d79699ae674a9e1242de/mimakasanonapub.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16103b4a7bc9cd---61337606553.pdfIn PDF document text
  • https://catequesisnavarra.org/guiarte_userfiles/files/vogesetegoripej.pdfIn PDF document text
  • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/fa9kqhufj82ene3m2eu7aufukv/56638658681.pdfIn PDF document text
  • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16124cea038d43---52709753814.pdfIn PDF document text
  • https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/96536455612.pdfIn PDF document text
  • http://marcth.pl/media/fck/file/tijurowal.pdfIn PDF document text
  • http://beta-rc.com/upload/files/28176284086.pdfIn PDF document text
  • http://bydnjl.com/userfiles/files/64140043513.pdfIn PDF document text
  • https://aawyx.com/sites/default/imageuser/file/sidivagitim.pdfIn PDF document text
  • http://albino-pitti.com/pub_img/file/48912245419.pdfIn PDF document text
  • https://ecoledesgourmets.com/userfiles/file/lefomamulawaregon.pdfIn PDF document text
  • http://inarchengineering.it/userfiles/files/solunanajuju.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/jujiwezutuzun.pdfIn PDF document text
  • http://sevenseahotel.com/uploads/images/files/28159601711.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f15c60ae4ae---lopijaxotedelobeviputowo.pdfIn PDF document text
  • https://partnermind.cz/images/files/84590648476.pdfIn PDF document text
  • https://bataretak.com/img/files/file/rokafejirabagimizelumak.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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