Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0d744b67916f2ec…

MALICIOUS

PDF

12.8 KB
MD5: f1c295ecb603bbf776086fa2cd248302 SHA-1: ca9d7ad879b1dea4e5d540cc4b578364233f4a5f SHA-256: a0d744b67916f2ecb7a123c318fec6b48a95c96c97ebdf3275a6ace8d8578013
118 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment T1059.007 Abuse Elevation Control Mechanism: JavaScript

The PDF file was flagged as malicious by multiple engines, including a critical ClamAV detection for 'Pdf.Exploit.Agent-6136306-0'. Static analysis revealed an embedded script payload within a PDF stream, indicative of exploit delivery. The presence of XFA form elements further supports the likelihood of exploitation. The embedded URL, while seemingly benign, is present within the context of a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000359.bin
c57bbd3b663c02a9fa7b8a49bb2d0c3d6b86c09dff782afd46d728da7c7ae0ad
pdf-embedded-script PDF raw stream script payload at offset 0x359 12338 bytes