Malicious PDF — malware analysis report

Static analysis result for SHA-256 eec240d77a9b3b45…

MALICIOUS

PDF

45.7 KB
MD5: 24a00e7e382b46ce889f463d0648bab8 SHA-1: 9b55d8df4292d577cebffc24af330c093197d13c SHA-256: eec240d77a9b3b4501f164493b67cc1f8122c3d1ae6be414ce047f04877271e1
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for malware delivery. While specific URLs are present, their reputation is unknown or benign, and the JavaScript itself is obfuscated, limiting deeper analysis of its exact function.

Heuristics 5

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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 http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/2.6/
    • http://www.xfa.org/schema/xfa-template/2.6/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0012_000.js
2ee411591cd8a2d9d4559bc1fba2757a38f7a24abae0ba743b5cbe2c05c2d126		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1F6 4068 bytes

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