PDF malware analysis — malicious · 65a52e4e4911d32a

MALICIOUS

PDF

19.4 KB

MD5: 3cbf24acfdbde95639999d0292f2bd3c SHA-1: 4bcf016ecb20c8741ef4bf3062db16c94026333b SHA-256: 65a52e4e4911d32acc158ac760a698f6472e4847276077ed70021d30e8f6c2b8

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains embedded content and an embedded script payload, indicating it's designed to exploit vulnerabilities upon opening. The embedded file 'embedded_file_obj0008.bin' is likely the delivered payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Embedded script payload in PDF stream low 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.
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_file_obj0008.bin` `b3660c1cbb7f4fdfd3167a32a28aedf5a5456a45b577f5ccdddadce19f3970ab`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	19059 bytes

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