Malicious PDF — malware analysis report

Static analysis result for SHA-256 c25702b2fb5ee7d0…

MALICIOUS

PDF

35.6 KB Created: 2021-04-03 14:41:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0f569136ae80aa4b8330b1b428773e4 SHA-1: 107576c7e135c2e96961e1e90fa8040bb5b26ff2 SHA-256: c25702b2fb5ee7d0c10e36251c3cf8f9bf34f7a2e5b380d072fde755e76b6147
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and an ML classifier. It employs a common phishing tactic by presenting itself as an image-only document with a clickable link, typical of a screenshot lure. The embedded URL points to a suspicious domain, likely serving as a landing page for further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7147

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 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://jacksth.ru/aws?utm_term=storm+front+speck+decoys

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