Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bae23f6dab2a067…

MALICIOUS

PDF

46.1 KB Created: 2021-06-02 23:53:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c8056784b9b2ef2bea3dcb94519429c2 SHA-1: 97c4426a90ea8bbe52cbbc71e06f996a70318d4b SHA-256: 6bae23f6dab2a067c5dff085ca65c4beeef0d7c4d9a62f1180e251d7990f7a0e
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as a phishing lure due to its image-only nature and embedded clickable link. The ClamAV detection and the PDF_IMAGE_LURE heuristic strongly suggest malicious intent, likely to redirect users to a phishing site or initiate a malware download. No scripts were extracted from this sample, but the presence of an external URI is a high-priority indicator.

Machine Learning

  • Nyx PDF Classifier clean score 0.1186

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 46 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://synerhu.ru/pbw?utm_term=hp+elitedesk+800+g2+small+form+factor+pc+ram

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