Malicious PDF — malware analysis report

Static analysis result for SHA-256 71e1da1a46b2ff23…

MALICIOUS

PDF

35.9 KB Created: 2021-09-26 04:16:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 72da7940fa285efe39445c93097b3f0f SHA-1: 31b6a260bbc032a90dfcb830d5e139b63bf921b6 SHA-256: 71e1da1a46b2ff23fb9a54b0346da31978b5be6313be46032f1fe69b0a57255e
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure, likely designed to trick users into clicking embedded links. The heuristic 'PDF_IMAGE_LURE' indicates it's an image-only document with an action trigger, typical for phishing. The presence of multiple unknown URLs suggests a redirection chain to a malicious payload. No scripts were extracted, but the overall structure points to a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7249

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://orig-shop-gsm.ro/ckfinder/userfiles/files/88608853167.pdf In PDF document text
    • http://naturabliskociebie.pl/userfiles/file/73817909101.pdfIn PDF document text
    • http://www.medical-psychology.gIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=ez+explorer+apkPDF link annotation

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