Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecb82f228da19489…

MALICIOUS

PDF

97.1 KB
MD5: 2c1d14843824995727c48614e6924d2c SHA-1: c71f2f69940900c2e80c6b4b5de350fbd1a83369 SHA-256: ecb82f228da194890e5fda4032573dcac0dad8eed00e3a087537de5c44c6e6a8
120 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers heuristics related to XFA forms and malicious PDF exploits. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script is likely responsible for delivering the secondary payload, although its exact function is obscured by the PDF structure.

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://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_0000026c.bin
62ed1806b1349a7819972578dcfdc7503fb64ca4bc5d9a720edf242ff798a51b		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 98659 bytes

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