Malicious PDF — malware analysis report

Static analysis result for SHA-256 c081928e058438cf…

MALICIOUS

PDF

36.8 KB Created: 2021-06-20 11:26:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: c93d46e971362b5a6cf87df7cb15ec80 SHA-1: e2b3d6baa81a0f29c559e8555d0a3aa18d3ad14c SHA-256: c081928e058438cf2345c0a5881cae7e293d9e9764b50a2726656b4b1acb596c
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5416

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 36 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 http://lnshiyue.com/userfiles/file/20210606192950_976478763.pdf In PDF document text
    • http://pechati-piter.ru/userfiles/file/67637685688.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/d33e4a73796ab3fcd186f8c38dceb915/nasobajaralafalixuv.pdfIn PDF document text
    • https://www.servicioscalibrIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=papercraft+pdf+free+downloadPDF link annotation

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