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 1 text block(s), carries a click-outward action, and is only 68 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://synerhu.ru/uplcv?utm_term=dr+seuss+eggs+and+ham+pdf PDF link annotation

  • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/e28d4cfe80f24d1055af46bb98286aba/82954837107.pdfIn PDF document text
  • http://officeharbor.com/pdtInfo/81415008779.pdfIn PDF document text
  • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/a4fb5f69a9e20a01c710791237b6e4ab/21224566344.pdfIn PDF document text
  • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/161359c48a0437---dixidapedujujenaxur.pdfIn PDF document text
  • http://didaconcept.com/admin/fckeditor/file/21926620900.pdfIn PDF document text
  • https://kitapkaplama.com/upload/ckfinder/files/91947481438.pdfIn PDF document text
  • http://zhuoer.ltd/userfiles/file/31532892757.pdfIn PDF document text
  • http://immobilieninvestors.com/userfiles/file/simipitakavinorajigogoza.pdfIn PDF document text
  • http://bio-scan.com/userfiles/file/44600097459.pdfIn PDF document text
  • http://quick-thailand.com/images/uploads/file/70650247392.pdfIn PDF document text
  • http://polyacer-ecp.com/userfiles/files/20210905_085608.pdfIn PDF document text
  • https://saikekanglun.com/filespath/files/20210919232032.pdfIn PDF document text
  • http://dastone.ru/userfiles/file/3772523282.pdfIn PDF document text
  • https://iqmuseum.mn/uploads/files/bulojojedadozulopuvena.pdfIn PDF document text
  • http://demirlermetal.com/resimler/files/28452795132.pdfIn PDF document text
  • https://gregoryshow.ru/files/file/wudoresezugopibanokurig.pdfIn PDF document text
  • http://zabbeleecooking.com/ckfinder/userfiles/files/90957928895.pdfIn PDF document text
  • http://shangyi-pump.com/uploads/file/071915502368.pdfIn PDF document text
  • https://alirezamirmohammadi.com/images/upload/files/88371096675.pdfIn PDF document text
  • https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/dlv4t02cgh4ds0448thkgqvu6t/5205007912.pdfIn PDF document text
  • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/9kg2k4cpkcofrtkanmuu64u6k1/45958249795.pdfIn PDF document text
  • https://marljivo.hr/userfiles/file/86748611523.pdfIn PDF document text
  • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/1b558550888df788e731d4965ea87445/tifiregunusewigudifapoz.pdfIn PDF document text
  • http://ergo-logo-bamberg.de/userfiles/file/10763027475.pdfIn PDF document text
  • http://guojingmall.com/userfiles/file///7666547537.pdfIn PDF document text
  • http://baikalspring.ru/ckfinder/userfiles/files/27868718969.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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