Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eb7819ca9814313…

MALICIOUS

PDF

2.16 MB
MD5: 771d2c53fe6dd0ae803ccd462d20b820 SHA-1: 1b1d4bacc975d1d8a14c3f7685555e0f5343ae33 SHA-256: 7eb7819ca9814313a04d602e13fb1c9767416e851096717c5941edb89b3bfe2b
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings related to PDF JavaScript and JS streams. The ClamAV detection of 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for exploiting PDF vulnerabilities. While specific URLs are present, they are primarily related to XFA schema definitions and Adobe namespaces, and their reputation is unknown or benign, suggesting the malicious payload URL may be dynamically generated or obfuscated within the script itself.

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
c4ba3591c3074e8fbc2f51681f2267ae4d6650196a96437268cf3aa864f515e3		 pdf-javascript-stream PDF /JS object 12 at offset 0x22974C 5835 bytes

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