Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc3a7d95d272acf9…

MALICIOUS

PDF

36.2 KB Created: 2021-07-27 07:56:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 6f939e2410d882e20d79a42817877b79 SHA-1: e52fad3f3e961e856c71385c413721f5d46d1547 SHA-256: dc3a7d95d272acf984cf719052041cff05fa87137dd9a08411054bbe70afa4a9
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that presents as an image-only document, a common tactic for phishing lures. It contains a single external URI that, while currently flagged as benign, is part of the attack chain. The ClamAV detection and heuristic firings strongly indicate a phishing attempt, likely designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3316

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 36 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=cuadro+comparativo+sobre+transporte+activo+y+pasivo PDF link annotation

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