Malicious PDF — malware analysis report

Static analysis result for SHA-256 21796141f85d5e2f…

MALICIOUS

PDF

70.3 KB Created: 2021-09-04 13:26:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 53ee1278e8972850bc85b104c78f2f41 SHA-1: 5fd1dfdfceda87072a76e082df70b04a88abaccc SHA-256: 21796141f85d5e2fea2aeee1503c5979b9daae10aa2d3f43d383cd9f41c93dd1
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, while currently flagged as benign, is presented in a way that suggests a social engineering lure. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, indicating it's not a standard document.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4905

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/~3/3CAf4wW3hvY/uplcv?utm_term=x1+carbon+7th+gen+hardware+maintenance+manual PDF link annotation

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