PDF malware analysis — malicious · 52170be7f7a9c20a

MALICIOUS

PDF

97.3 KB

MD5: f7a7655fb43187ad7e692f0f3c72a3ef SHA-1: 76c27d6e4a6343c4a24a1026efea1db41d17d299 SHA-256: 52170be7f7a9c20a007657463242b0f4f32bb325dea3dd942926bc743dbf33fe

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-6136306-0' and a high ML classifier score. The presence of an XFA form and an embedded script payload indicates an attempt to execute malicious code. The embedded script is likely responsible for downloading and executing a second-stage payload, although 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.

Filename	Kind	Source	Size
`embedded_pdf_script_0000026c.bin` `7d8211840c8643d3fedc510af00915dd56938c72d50d7d992963d333b905938e`	pdf-embedded-script	PDF raw stream script payload at offset 0x26C	98873 bytes

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