Malicious PDF — malware analysis report

Static analysis result for SHA-256 d86d906e8c7df899…

MALICIOUS

PDF

45.5 KB
MD5: 72024fc0ef25d50cf28a8c4459d7c550 SHA-1: ac39bf00e0ed6e8e10cda627c94899fc06497a16 SHA-256: d86d906e8c7df899ddacf98692ec481ff3f5c403fb0f3c21bc237123ca251d2f
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript and is flagged by ClamAV for obfuscated objects, indicating malicious intent. The presence of XFA form elements further suggests a complex structure often used for exploitation. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, though its exact function is obscured. The URLs extracted are related to XFA, but their reputation is unknown or benign, providing limited direct threat intelligence.

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
2993f6b74ab9c3b60b4da17df307add43e0fc000091c3325891219c788704a17		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1F7 3937 bytes

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