Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5660e03da271ed7…

MALICIOUS

PDF

372.0 KB Created: 2021-08-19 12:29:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: cc8b6ba577f0dcbe8af79c6d856ffd27 SHA-1: 4a2883df5ad0ee79e641a3c28886cda4d7a50f6f SHA-256: e5660e03da271ed7d8537475587f755366a22c1fb0210e61056b6fc5bf409694
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to compromised WordPress sites, likely intended to host and distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of embedded URLs and the nature of the heuristic firings suggest a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7949

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://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/98b703fc33120c3a71a1bd672e18a266/vereb.pdf In PDF document text
    • http://paroissedementon.fr/upload/files/36635314850.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/6a7cb7001f58afb808d5721f7a9db4b9/16184738282.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/30ba59ec0c4e780551fcd69dd6c22544/dusunijoxisusawosasekeger.pdfIn PDF document text
    • http://hublihorse.com/uploads/userfiles/files/gerazupelasazekipitebobad.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160782c81107f2---44335704457.pdfIn PDF document text
    • http://kimura-shihoshoshi.com/userfiles/file/vofipuliwizeb.pdfIn PDF document text
    • https://himanshikitchen.info/viking1/uploads/files/laIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=libro+los+bere+pdf+gratisPDF link annotation

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