Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc47a3a59cc7d95d…

MALICIOUS

PDF

37.2 KB Created: 2021-09-01 16:49:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 7aa65b0d593e54743b0c92fe2676d949 SHA-1: 6e727e99d5ebc74ffc8f51f260d2249a8e8e4468 SHA-256: dc47a3a59cc7d95d69d9a3f4c3a33bd9c42e9652f9cb05cddb944a0cc7af4f5d
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that uses an image-only lure, typical of phishing attempts. It contains a clickable link that directs to an external URL. ClamAV also detected this file as a phishing trojan, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3316

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 37 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://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=do+dogs+chase+cats PDF link annotation