Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4bfdbc44eb0f072…

MALICIOUS

PDF

40.8 KB Created: 2021-08-15 03:42:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-25
MD5: 364dddc45f896f9721f18ecfd9d71364 SHA-1: 91d9d079f188bd54b8a66e66747b627e3e2518ff SHA-256: d4bfdbc44eb0f07232e3b140c193185e9aa2ef40ede2264e3dd3a8f2d828704f
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a signature indicating phishing and trojan activity. It contains an embedded URL that, while currently classified as benign, was likely intended to direct the user to a malicious site. The document body is heavily obfuscated and unreadable, preventing further analysis of its specific lure.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3406

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=historia+del+sistema+numerico+hexadecimal PDF link annotation

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