Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8c95261b73ee112…

MALICIOUS

PDF

46.0 KB
MD5: 835242b6566de48d4bcf0ba71b38963b SHA-1: f6b13fc85ee8ad890f03e806323e45494d1f55ba SHA-256: b8c95261b73ee1121c7115fb9da606d53a4f6a43107655b6b77c38233c8dbec6
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ClamAV detection of 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. While the document body is heavily obfuscated and unreadable, the presence of JavaScript points to an attempt to execute code, likely to download and run a secondary payload. The embedded URLs, though not directly malicious, are related to XFA forms, a common vector for 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
064920e7efcdbb8935cf1e8a46ab1402aac03a8732a69040c40fe76bc0510291		 pdf-javascript-stream PDF /JS object 12 at offset 0xA1D7 4477 bytes

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