Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d34ce1ff023ada6…

MALICIOUS

PDF

97.1 KB
MD5: 197d2441785308afb3ba63756db3fe47 SHA-1: 3c961cfff734d8f41b1a48f364fb12fc3f77cf68 SHA-256: 4d34ce1ff023ada6c49004998028f863f8c6209eccceb81158932027ca2ff885
118 Risk Score

Malware Insights

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

The PDF exhibits characteristics of malicious intent, including XFA form usage and an embedded script payload. ML classification and ClamAV detection strongly indicate maliciousness, specifically identifying it as Pdf.Exploit.Agent-6136306-0. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured.

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_0000026c.bin
9bc1943ac98aad931f40438d77d3010d306a683e4b9f95bd0bf3f17a6a37fb7d		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 98659 bytes

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