Malicious PDF — malware analysis report

Static analysis result for SHA-256 03873a0582fdb0b7…

MALICIOUS

PDF

35.0 KB Created: 2020-12-31 13:32:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f1d361bc30a8ea1a2b30eb0c93717543 SHA-1: a76a4f418952844abee2c5e44dc9a35c1bf97308 SHA-256: 03873a0582fdb0b7a4df1a46aba5e5ce750b15d7f344fbf0653a7d8da41fe87e
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as malicious by multiple heuristics, including a machine learning classifier and ClamAV, which specifically flagged it as a phishing trojan. The 'PDF_IMAGE_LURE' heuristic indicates it's an image-only document designed to trick users into clicking an embedded link, which is a common phishing tactic. The embedded URL points to a suspicious domain, likely serving the next stage of the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8097

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 34 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://trafftec.ru/strik?utm_term=real+time+payments+flow+diagram PDF link annotation

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