Malicious PDF — malware analysis report

Static analysis result for SHA-256 85009f6a6274983f…

MALICIOUS

PDF

43.8 KB Created: 2021-08-15 23:49:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-04
MD5: 42cbb20d773d80b7fa516b6b08146094 SHA-1: 692e1fccc2acc224f6cc01d0468ea77436a987b6 SHA-256: 85009f6a6274983f5071f7eff00ff86afd30dfdc9859601c97d9c79ffe34fe0f
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4883

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://pixomot.ru/uplcv?utm_term=seigneur+nous+arrivons+des+4+coins+de+l%27horizon+partition PDF link annotation
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/jpt02u158fmrpockv4cscibck5/dejefagorolerufukojurop.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc4581b54fb---99501302271.pdfIn PDF document text
    • https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/8dba945e42be614883e8845d795a03c6/doveru.pdfIn PDF document text
    • https://echipamente-scule.ro/userfiles/file/79404639097.pdfIn PDF document text
    • http://stlukesfp.org/ckfinder/userfiles/files/17870881218.pdfIn PDF document text

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