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
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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://smidgel.ru/uplcv?utm_term=apk+super+smash+bros+64 PDF link annotation

  • http://ahxxzx.com/userfiles/202109/file/96736191464.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148f8ffa5e04---14733741023.pdfIn PDF document text
  • http://phayaotechno.com/UserFiles/File/wonelowomasezazerexu.pdfIn PDF document text
  • http://dayou.tw/uploadpic/files/202109180220162903.pdfIn PDF document text
  • http://dralituncer.net/userfiles/file/21644071872.pdfIn PDF document text
  • http://horvathortho.hu/tmp/31034996449.pdfIn PDF document text
  • http://plymouth-logs.co.uk/ckfinder/userfiles/files/94743865409.pdfIn PDF document text
  • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/b8acb6544b54b51a680a7ebe0149989a/43936551388.pdfIn PDF document text
  • http://trans-serwis.com/userfiles/file/melorewuzedulalefawilezo.pdfIn PDF document text
  • http://bienbao.net/uploads/files/95094503049.pdfIn PDF document text
  • https://mmagame.com/userfiles/file/71874654579.pdfIn PDF document text
  • http://jowinbio.com/upload/files/202109100438014104.pdfIn PDF document text
  • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16146753eafe7e---48671506808.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef738325f9---fesenaledinisudusikepofe.pdfIn PDF document text
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16145453571456---riwazemexatamebavididogin.pdfIn PDF document text
  • https://www.karelo.com/uploads/File/51435743702.pdfIn PDF document text
  • http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/valoxaxegulaw.pdfIn PDF document text
  • http://drxzhang.com/userfiles/file/dekuparomoligogixelavere.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16133dcfda52fe---xozomaderejiwuk.pdfIn PDF document text
  • http://zhengfutz.com/v15/Upload/file/20219162225437139.pdfIn PDF document text
  • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/72750f1964cf8b9b9056d58432e133ca/10360042042.pdfIn PDF document text
  • https://073741256.com/uploads/files/202109070909046211.pdfIn PDF document text
  • http://childconnect.com/swi/fckfiles/file/77326320353.pdfIn PDF document text
  • https://badrivishal.com/media/rejurumikefazosakujed.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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