Malicious PDF — malware analysis report

Static analysis result for SHA-256 d60728d64c65e186…

MALICIOUS

PDF

45.6 KB
MD5: 5a3fd0b56c9ec78698eb909249e2f6d6 SHA-1: d537aed60dae3e31ebbdc739131cf8a53a28cf30 SHA-256: d60728d64c65e186038283c50f5b3427ce007edc0707db64655a9a35dd726412
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection for 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent through obfuscation. While the document body is unreadable, the presence of JavaScript points towards an attempt to execute code, potentially for downloading further malware or exploiting a vulnerability. The embedded URLs are related to XFA forms, which are sometimes used in PDF exploits.

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
39c0f7badeaec63dd00a9ac761a68415871f19a477ff56911f52892fcad6b8ee		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1F4 3966 bytes

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