Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8c6fa1007c23eac…

MALICIOUS

PDF

50.8 KB Created: 2021-09-04 04:36:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: c79d5100bf022887b5146fcc3dbb5e9c SHA-1: 05b1f4201948725bda96e1d1f874b4783cbc87d5 SHA-256: d8c6fa1007c23eace2aa95ae153d74982f49e88e79cce5bee2346a5cf37e653c
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by multiple heuristics, including a ClamAV detection for Pdf.Phishing.Trojan. The presence of embedded URLs, specifically 'https://queure.ru/uplcv?utm_term=24+italian+songs+and+arias+medium+high+voice+pdf', suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the nature of the URLs indicate a likely attack pattern involving directing the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5752

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://queure.ru/uplcv?utm_term=24+italian+songs+and+arias+medium+high+voice+pdf PDF link annotation
    • http://thucphamchucnangmy.vn/uploads/files/22076934307.pdfIn PDF document text
    • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/seIn PDF document text

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