Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://nomylo.ru/uplcv?utm_term=attack+on+titan+ps4+apk PDF link annotation

  • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614736e293c84---43941050.pdfIn PDF document text
  • https://epgeptech.hu/ckfinder/userfiles/files/xoxupatavawovavetupinen.pdfIn PDF document text
  • https://heureka-cz.eu/files/99891073266.pdfIn PDF document text
  • http://mrukseo.pl/userfiles/file/dusipobin.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/cafac6daae8b4f5e41ca15eadbe0e3d4/7821673596.pdfIn PDF document text
  • https://aiwcecckolkata.org/FCKeditor/file/wutozaxeganivuv.pdfIn PDF document text
  • http://serbanindustrialconstruct.ro/uploads/files/jeliwekojepopono.pdfIn PDF document text
  • http://veszpremkosar.hu/_user/file/gisebaripelakilixuzemup.pdfIn PDF document text
  • https://bagstyle.uz/images/file/fumasux.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137760c136a2---87658643551.pdfIn PDF document text
  • http://gaia-onlus.org/userfiles/file/kepuzewowuzowisukiladalag.pdfIn PDF document text
  • https://weyergans-hcc.lv/userfiles/file/7766119182.pdfIn PDF document text
  • http://sendedianqi.com/upload_fck/file/2021-9-18/20210918035735673353.pdfIn PDF document text
  • http://polenes.cl/userfiles/file/loxuzuxo.pdfIn PDF document text
  • http://cerezolorente.com/files/cerezolorente/_repo/file/72670401572.pdfIn PDF document text
  • http://ecohost.ru/pics/images/file/83185437524.pdfIn PDF document text
  • http://kstarsmall.net/userfiles/file///43221809833.pdfIn PDF document text
  • http://zbirozskepodzamci.cz/userfiles/wufasemutinafip.pdfIn PDF document text
  • http://holidayservicemarsala.it/userfiles/files/19665235579.pdfIn PDF document text
  • https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/1e6a6d583f13f5f1a3812ee541cd6c2d/fexesek.pdfIn PDF document text
  • https://hsdinstruments.nl/uploads/files/94738126337.pdfIn PDF document text
  • http://alarmy-kamery24.pl/userfiles/file/19326902332.pdfIn PDF document text
  • https://megalightgroup.lv/uploads/files/xalilodumopowefejotoji.pdfIn PDF document text
  • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135932febf5a---5516845875.pdfIn PDF document text
  • http://novichiha.ru/pic/file/zilijarev.pdfIn PDF document text
  • http://sk-massimo.com/js/upload/files/nilipenanodepoke.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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