Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a744de50b403efa…

MALICIOUS

PDF

35.9 KB Created: 2021-09-28 06:12:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 60902abbb24501d452ea4fe85b3ce555 SHA-1: ef00b9a5339f515e0395aa4357e813cf44a418b4 SHA-256: 5a744de50b403efab2ce59f5ca7809c5b4aae4e8825731e86bd1abfcae7f300f
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains an embedded URI that, while initially appearing benign, points to a potentially malicious PDF. The heuristic 'PDF_IMAGE_LURE' indicates the document is image-heavy with a clickable action, a common tactic for phishing or malware delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7731

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 35 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://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613389ec0dc5a---tibirimirur.pdf In PDF document text
    • http://goodwill.pl/userfiles/file/64000981057.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=true+diary+pdfPDF link annotation

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