Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fc204d835a45472…

MALICIOUS

PDF

47.8 KB Created: 2021-10-06 06:35:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: e38d2d11a85b12ce322b3b627ba1f5a0 SHA-1: 91b653f79aa04dfbd080c4084a761c1bc294c9ea SHA-256: 4fc204d835a4547289d6b4282aa31fa1c38896d81899df067c75e3da62bee5c0
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF containing embedded JavaScript and external URIs, flagged by ClamAV as Pdf.Phishing.Trojan. The embedded JavaScript and the external URI point to suspicious domains, indicating an attempt to redirect the user to malicious content. The presence of these elements suggests the document is designed to exploit users, likely for phishing or to download further malicious payloads.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4722

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
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://krisoc.ru/uplcv?utm_term=pokeball+plus+work+with+sword+and+shield PDF link annotation
    • https://thietbixanh.net/uploads/files/ratogukora.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f3835c5354---10776310548.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/faf88c37d9fdd6ab744a48686f2f1861/gurevigexar.pdfIn PDF document text
    • http://harmonie-avion.fr/actualite/files/miwekafaxoxiv.pdfIn PDF document text
    • http://gold-carsales.com/js/upload/files/fajogonurares.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/xupamanavuzuvoxofisov.pdfIn PDF document text

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