PDF malware analysis — malicious · 80b16a2a8b5514d0

MALICIOUS

PDF

12.0 KB

MD5: 348eef2296a06e4ee0c4807b9b762ce2 SHA-1: c92c6ee3c13f7e1d926af30da7ee44b110b444ff SHA-256: 80b16a2a8b5514d0d8b133d1263172b0048c9c0be4fc77ca3460d31434b9b808

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious intent. It contains embedded content and an XFA form, which are common vectors for PDF exploits. 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` `d09142a2faedef23c70021cfdf44daeaf6bca026290b15d719e69a521a4ba125`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11530 bytes

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