Malicious PDF — malware analysis report

Static analysis result for SHA-256 d975a522ebccfdf2…

MALICIOUS

PDF

111.5 KB
MD5: 123ada89c1039bae86401678f19c28e7 SHA-1: 5e9f16288ba39895de572dcadabc1d3ed14c56e6 SHA-256: d975a522ebccfdf26ca03b47bec0525346035ee250e276a797fd1fe264c83f7f
118 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 downloading and executing a second-stage payload, as suggested by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic.

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_0000025e.bin
5f20f03dcd1a23cac95c67bc2d093914ed6516d72ac2bbcd33d40c5de39ccedd		 pdf-embedded-script PDF raw stream script payload at offset 0x25E 113417 bytes

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