PDF malware analysis — malicious · f5c11a7903472d06

MALICIOUS

PDF

79.4 KB

MD5: 045279db77b58727fbf8bec6af70e0ab SHA-1: b87d86909fee17a69e2b8ba9293e6748c28b0060 SHA-256: f5c11a7903472d06da0cae339e235194a3b157e6d91a2a4fd4e119f488bf6c46

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-6136306-0' and a high ML score. The presence of an XFA form and an embedded script payload indicates an exploit attempt. The embedded script likely downloads and executes a second-stage payload, though its exact function is obscured by the PDF structure. The confidence is high due to multiple strong indicators.

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.

Filename	Kind	Source	Size
`embedded_pdf_script_0000023c.bin` `8c618cfc3c8448e3e693a8aee4643e8c80b6cda566e88cd336b610940486160f`	pdf-embedded-script	PDF raw stream script payload at offset 0x23C	80622 bytes

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