Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1d6b20618632dba…

MALICIOUS

PDF

100.7 KB
MD5: d32a76e805aadad57a1d33d7eb069089 SHA-1: b8054343c175348766446f229001d9d7ecb0ef06 SHA-256: e1d6b20618632dba0ae6e6f582fe17e926ca23cea51b5736a80abdeca4a6b1f9
118 Risk Score

Malware Insights

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

The PDF utilizes XFA forms, a known vector for exploitation. A critical ClamAV detection and a high ML classifier score indicate malicious intent. An embedded script payload was also identified, likely responsible for executing the exploit and delivering a secondary stage. The specific nature of the embedded script could not be fully determined due to obfuscation, but its presence strongly suggests the PDF is designed to download and execute further malicious content.

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_00000246.bin
9fdea705302bcfcacb0084f0e46564800213ebeeb21930ffeaf8bcd00443e56c		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102374 bytes

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