Malicious PDF — malware analysis report

Static analysis result for SHA-256 55011be767ba2b95…

MALICIOUS

PDF

47.6 KB Created: 2021-08-19 15:52:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-25
MD5: 6f00fbf175a431132962cb04a7d2356b SHA-1: 439491bf878600e4c6a2023ec2c78525b5da4d65 SHA-256: 55011be767ba2b956f63eb0fbe27febc82f816c5b4d5a07d62bb0ddbc0238388
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a signature indicating it is a phishing trojan. It contains an embedded URI that directs the user to a URL, likely intended for a phishing or malware distribution campaign. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not a typical user-facing document but rather a container for malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3862

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/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=writing+linear+equations+worksheet+module+5+answers PDF link annotation

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