Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca20265e81de690b…

MALICIOUS

PDF

45.7 KB
MD5: cf1de293b7234f043b2c95e50ca9f8bf SHA-1: af63f0a4398c370336cbae0b131ca20f4e33cc9a SHA-256: ca20265e81de690bd91350df5214acbf886aba58cb780cf26f1522820a7ccf73
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript and is identified as an XFA form, indicating a potential for malicious script execution. The ClamAV heuristic 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. While the document body is heavily obfuscated and unreadable, the presence of JavaScript points towards an attack pattern involving script-based exploitation. The embedded URLs are related to XFA specifications and do not appear to be directly malicious.

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
96137206385df4f656571316c3f1c70a1a87f6b1ee6aa74164124c3cb823ecee		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1DE 4134 bytes

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