Malicious PDF — malware analysis report

Static analysis result for SHA-256 93329620e431ebd4…

MALICIOUS

PDF

51.5 KB
MD5: a5dd95abd29012ccf23907d305e58ad9 SHA-1: dbb5881e77e461c5793711a414818de8ae250781 SHA-256: 93329620e431ebd4e26f1f5f67e973d3f20d852ea23f9f6055158a5a43af5bc1
118 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and utilizes XFA forms, indicating a potential exploit. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded script is likely responsible for downloading and executing a second-stage payload, as indicated 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_00000240.bin
fef89271ee01ee54948a7e7ed1a536430187befc8657c7ae6cfafb613112fe0f		 pdf-embedded-script PDF raw stream script payload at offset 0x240 51984 bytes

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