Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c1d9a48b592465…

MALICIOUS

PDF

39.7 KB Created: 2021-09-25 06:27:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 86d8e90a5a1333e19f6bb24786f8c4c9 SHA-1: 5f95d00a9b619e2043685a686cd770e55fcc2308 SHA-256: 07c1d9a48b592465a90ebd5e7482b30c6e86321d3bdd11473f544861c26e6c02
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a specific signature indicating it is a phishing trojan. The presence of an external URI pointing to 'smidgel.ru' with a query parameter suggesting a software download, combined with multiple other embedded URLs, strongly indicates a phishing or social engineering attack. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the overall structure and heuristic firings point to a lure for downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4209

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://smidgel.ru/uplcv?utm_term=win+7+home+basic+64+bit+key
    • http://rm-centr.ru/uploads/file/34951660255.pdf
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/e02472263649ad6b6c0f08a4557cffd3/fenuni.pdf
    • https://divetechmarine.com/contents/files/44574579517.pdf
    • http://www.vljainandco.com/userfiles/files/gelakapizule.pdf
    • http://www.europesolidaire.eu/userfiles/files/sasimamopudaposudusa.pdf
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613305124cce9---xexibigefijagexudaneniku.pdf
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file

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