Malicious PDF — malware analysis report

Static analysis result for SHA-256 669ec25c370b6f1f…

MALICIOUS

PDF

52.5 KB Created: 2021-09-08 06:24:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: f8f4b4cc7d9b35bb801fd35e8cf48594 SHA-1: d769cfcc93ea10f1e80f2549ac77c71df07fefbb SHA-256: 669ec25c370b6f1fe246f8ae7b119c061dd701fbbfeba08578acf34a4d83cac0
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a signature indicating phishing and trojan activity. It contains an embedded URI pointing to a URL that is presented as a "noetic math contest pdf", likely a lure to trick users into visiting a malicious site. The presence of PDF_URI and EMBEDDED_URL heuristics further supports this phishing attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4520

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=noetic+math+contest+pdf PDF link annotation
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/eb18357cc35fdc2b64c207748ef7ea97/90872298833.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/hr7l9hqaehln1i5ffk2lhdqeih/58989335760.pdfIn PDF document text
    • https://bedandbreakfastchia.it/userfiles/file/29851027401.pdfIn PDF document text
    • http://share-world.tw/userfiles/file/putawedopukatesogazis.pdfIn PDF document text
    • https://tomas-music.com/contents//files/jofapekijufolofupel.pdfIn PDF document text
    • http://rungrawin-itt.com/userfiles/files/xodogibetejiva.pdfIn PDF document text

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