Malicious PDF — malware analysis report

Static analysis result for SHA-256 a27eb915b6493661…

MALICIOUS

PDF

45.2 KB
MD5: 9f91f360aec6fa65bf018b1478db6340 SHA-1: 6bb4de17601c4be5a4cc8ccc559cf4fe4b6fd872 SHA-256: a27eb915b64936617299dafc8e074c5a6611fb98f718cd7aef1a0adcb4475db7
114 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent. While the document body is heavily obfuscated and unreadable, the presence of JavaScript points to an attack pattern involving code execution. The embedded URLs are not directly indicative of malicious activity but are part of the PDF structure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9595

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
cd5b44a94a01e21daa347c337f22375641001cd128ac707a4b8df0013d1c10d2		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1EC 3662 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.