Malicious PDF — malware analysis report

Static analysis result for SHA-256 57650ab94aad063d…

MALICIOUS

PDF

98.0 KB
MD5: 395bb342b73c7bb52c662413c6da4398 SHA-1: b7e08bb894fe7446d20818a84fbbbad92b66f155 SHA-256: 57650ab94aad063d06d734d0d2a820c4f33cfacd760eb516d0945076f358950a
118 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical ClamAV detection (Pdf.Exploit.Agent-6136306-0) and an ML classifier, indicating malicious intent. The presence of an XFA form and an embedded script payload strongly suggests the document is designed to exploit vulnerabilities or execute malicious code. The embedded script likely downloads and executes a second-stage payload, though its exact functionality is obscured by the PDF structure.

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
65087d263283be6a6a7906d75ae8eee61edd8bde5f590998d337116f95c523f6
pdf-embedded-script PDF raw stream script payload at offset 0x26C 99627 bytes