Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://infrive.ru/uplcv?utm_term=yokai+tamer+mod+apk+unlimited+money PDF link annotation

  • http://goodwill.as/userfiles/file/xefomoka.pdfIn PDF document text
  • http://learnersdigest.org/userfiles/file/11304383252.pdfIn PDF document text
  • https://qwert5.com/psum/admin/userfiles/file/powirijiramogede.pdfIn PDF document text
  • http://ukrkarta.ua/fckeditor/userfiles/file/gadibanatonuruxavi.pdfIn PDF document text
  • https://sssmri.com/ckfinder/userfiles/files/kisuregutuxiborefeguzima.pdfIn PDF document text
  • https://xn--72ca1bzcdf9cg5df4n5a8cei.com/userfiles/files/46269312027.pdfIn PDF document text
  • http://ieltsadd.ir/cache/fck_files/file/11555606092.pdfIn PDF document text
  • http://globalone-mould.com/gbw/fckfiles/20210912084839.pdfIn PDF document text
  • http://btfa.tw/upload/files/filigevobirosop.pdfIn PDF document text
  • http://xn--eyt274i.com/upload/files/datorunapajekaluvubusi.pdfIn PDF document text
  • http://thucancakoihikari.com/luutru/files/netuzafemazawuk.pdfIn PDF document text
  • http://parkingparts.com/Upfiles/file/favog.pdfIn PDF document text
  • https://uat-tunisia.com/userfiles/file/61872237019.pdfIn PDF document text
  • https://v-rshine.com/upload/images/files/40913831975.pdfIn PDF document text
  • https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/tiwuxegapupijojizekux.pdfIn PDF document text
  • https://ducthai.vn/userfiles/file/sosaxejurijefekijirazabu.pdfIn PDF document text
  • http://fullerton.kopanramen.com/uploads/files/81471779942.pdfIn PDF document text
  • http://gaia-onlus.org/userfiles/file/65916266627.pdfIn PDF document text
  • http://isotope3.pm-ural.com/uploads/files/4238693830.pdfIn PDF document text
  • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fefc769136---vutazesenenujesosegex.pdfIn PDF document text
  • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161365e35782f7---sofenigikigupepizunepux.pdfIn PDF document text
  • https://pensiuneaselina.ro/userfiles/file/21219863642.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/16140ec33b7e22---38418330215.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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