Malicious PDF — malware analysis report

Static analysis result for SHA-256 c97c558a4947b6ac…

MALICIOUS

PDF

123.9 KB
MD5: 323e998fa4a6ea972ad8a994731993d0 SHA-1: ba8ce8cc3f8b10fbae29758224eb2f48b074fa70 SHA-256: c97c558a4947b6acbfbc0df0d4f607c404f877b1d3046fdabf93fdd5cd3f22c3
118 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-6136306-0' and a high ML classifier score. The presence of an embedded script payload and an XFA form indicates the file is designed to execute malicious code. The embedded URL, while seemingly benign, is present within the document 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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000033a.bin
983be8cfb232479dcda4552759a94d9c3fb50f396cdec3a2900f2075f0d0e84a		 pdf-embedded-script PDF raw stream script payload at offset 0x33A 126109 bytes

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