Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ec15581a32604b4…

MALICIOUS

PDF

12.8 KB
MD5: ba04ffda50fc65f9631aaaa08d3f658b SHA-1: 56299f04cd465dccb2ac6ea7c216ce2590162cb5 SHA-256: 1ec15581a32604b4bfe498d4a3bb81417f70b3f2079408346ab90b6f8c6775ae
118 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF was flagged by multiple high-confidence heuristics, including ML and ClamAV, indicating it contains malicious content. The presence of an XFA form and an embedded script payload suggests an exploit is being delivered. The embedded URL is likely part of the exploit chain or payload delivery mechanism.

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
8babf46540261c1f7f783091b09f5ad618271c179cbe1a8ebdf4f30d020c67f0		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12376 bytes

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