Malicious PDF — malware analysis report

Static analysis result for SHA-256 af4a2db503c32795…

MALICIOUS

PDF

12.7 KB
MD5: c8108fc9d576a5e58e4483cc29cd5716 SHA-1: 74ec18a79c1adda224ed1bad1759e5991abf71a6 SHA-256: af4a2db503c32795c071edfaa87332e19e5d152a710c401324edc49e0208b15b
118 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggered multiple high-severity heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-6136306-0'. The ML classifier also flagged it with very high confidence. The presence of an embedded script indicates an attempt to execute malicious code upon opening the document, likely exploiting a PDF reader vulnerability. The embedded URL is likely part of the exploit chain.

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
bf23d194f646100208517752b51b9ef9193460b5fb1ef1e8336811a53180cabb		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12256 bytes

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