PDF malware analysis — malicious · 243719c8273c7c6a

MALICIOUS

PDF

96.9 KB

MD5: c41d1379950c9a57e80311817d98fbed SHA-1: 245c6c64a348ff3c2eeac6d079ab2364cbc14e62 SHA-256: 243719c8273c7c6afdf546f3ea4446750b48e60f5cc5a3bd4845d789e82c5d7d

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF utilizes XFA forms, a known vector for embedding malicious content. Heuristics indicate an embedded script payload and ML classifiers strongly flag it as malicious. ClamAV detection confirms this, identifying it as Pdf.Exploit.Agent-6136306-0. The embedded script is likely responsible for executing the exploit, though its specific actions are not detailed in the provided evidence.

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` `c856bea7e010f966a7874f462c2ae2d9f9099531ba7523d7bb1a753b1032604a`	pdf-embedded-script	PDF raw stream script payload at offset 0x26C	98551 bytes

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