Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6dbcb06ebc852e0…

MALICIOUS

PDF

45.8 KB
MD5: 8c418e5e240dff438cc7d5ee03f0adc0 SHA-1: be946626cfdf4df5a6b231b770c920411ba3fd9c SHA-256: f6dbcb06ebc852e0b70283c82482e8bcf374710cf11ade21a3b16ef5ba37a929
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of a javascript_obj0012_000.js artifact. The ClamAV detection of 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. The embedded JavaScript is likely responsible for executing malicious code, potentially downloading further payloads or exploiting vulnerabilities, which is a common attack vector for malicious PDFs. The confidence is high due to multiple indicators pointing to malicious JavaScript execution within the PDF.

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
a2dd9d6fbe87b6274680ff904718337302b5f9f1832640446a74c6e870022779
pdf-javascript-stream PDF /JS object 12 at offset 0xA1DD 4328 bytes