PDF malware analysis — malicious · 8d4dcaa377a2ed1a

MALICIOUS

PDF

79.4 KB

MD5: 17176d8f67ffb474d27fdf9dfc61315c SHA-1: f866a2c344c7f108d5a0e25e1f2839112c01817f SHA-256: 8d4dcaa377a2ed1a191dc9a1360ba2ba09ffa89bec555e6656a711ce65c9f197

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an embedded script payload and triggers heuristics related to XFA forms and malicious PDF exploits. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script, although not fully detailed in the provided evidence, is the primary mechanism for exploitation, likely downloading and executing a second-stage payload. The presence of XFA form elements further supports the exploitation vector.

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` `c2f98ddd2cfe643ac0ccbb97fd7c9cea01fefa3c7a0245756277a2958e606806`	pdf-embedded-script	PDF raw stream script payload at offset 0x23C	80622 bytes

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