Malicious PDF — malware analysis report

Static analysis result for SHA-256 95003835d945ef34…

MALICIOUS

PDF

44.7 KB
MD5: 7222a51824c25adb924d59f0fea67897 SHA-1: 7a473bf74979b60a9cef6966690fee9489ef12b4 SHA-256: 95003835d945ef34b905a1888908d69a6f7d84a6cb7b068ef13d95c0fe48e506
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject' further suggests 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, though not directly malicious, are related to XFA forms, which are sometimes used in PDF exploits. The exact functionality of the JavaScript could not be determined due to obfuscation, but it is likely designed to download and execute a second-stage payload.

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
4864c23c269011f570751b2582125b64d66bdaf539de056f43b8ac72bf6eaab3		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1EA 3271 bytes

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