Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d4ed8e5ebd388f…

MALICIOUS

PDF

79.1 KB
MD5: 10a36f853cf4cf9563328a27b97bfa7c SHA-1: 59fcb29ec7c6b897b8d1a7eb38c4c93cb5c8e986 SHA-256: 32d4ed8e5ebd388fe936ff0d4633e02e66b9bcfbfdcc4a3b93b286dfc3127544
178 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF T1059.001 Command and Scripting Interpreter: PowerShell

The PDF was flagged by multiple heuristics, including ML and ClamAV, indicating malicious intent. The presence of an XFA form and an embedded script payload suggests an exploit is being delivered. ClamAV detected the embedded artifact as 'Js.Exploit.HTML-29', pointing to a JavaScript-based exploit. The attack pattern is consistent with a malicious PDF designed to exploit vulnerabilities and execute embedded scripts.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000023c.bin
8970c0292422b0464ae0f6c4fdcd5c6e20281d5f739c08bdb45fc93ceb7563ee		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80285 bytes
Detection
ClamAV: Js.Exploit.HTML-29
Obfuscation or payload: unlikely

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