Malicious PDF — malware analysis report

Static analysis result for SHA-256 414f79b37d240edf…

MALICIOUS

PDF

35.9 KB Created: 2021-09-05 18:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 5108cc4f03bb9b4cd79a9e2675627fd0 SHA-1: c43fd9fbbefb46e90f5fc9d605e8912632ba5f4e SHA-256: 414f79b37d240edf4147a3cc94aa32c7498291498eb92a775f146b9a7702205b
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size and image-heavy content, typical of a screenshot designed to hide clickable links. It contains an external URI pointing to 'smidgel.ru', which is likely part of a phishing campaign. ClamAV also detected it as a 'Pdf.Phishing.Trojan'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7689

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 35 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 https://smidgel.ru/uplcv?utm_term=ssnit+student+loan+application+form+pdf PDF link annotation
    • http://grandinspirations.com/clients/75274/File/wimalupap.pdfIn PDF document text

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