Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad783e7caafbdc11…

MALICIOUS

PDF

100.5 KB
MD5: ed0e23cc94ee6f45452a7104eb8c2e86 SHA-1: 324cf1ac7eb56324c11f55193d70b88a48e6b113 SHA-256: ad783e7caafbdc11c9388cc63df0dd702ad478479f60473742a09b673ea8602a
120 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. The XFA form detected suggests a potential vector for exploiting vulnerabilities. The embedded script is likely responsible for downloading and executing a second-stage payload, contributing to the overall malicious intent of the document.

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
4b2fac61646327c39a78188cf43215e1099cfd321c1e39daf5b19a0a6f3108ff		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102235 bytes

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