PDF malware analysis — malicious · 380a5c848b0f36d3

MALICIOUS

PDF

11.8 KB

MD5: d7807e599ab54233fb622fe5e563668a SHA-1: 5e6a37b2db67e1cf8c15a898d5fa338345a7d99a SHA-256: 380a5c848b0f36d32b0104032a2990b7febedabc5302fd2592b62bdb4160d476

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The file is identified as malicious by ClamAV (Pdf.Exploit.Dropped-78) and a machine learning classifier. Heuristics indicate the presence of an embedded script payload and an embedded file, suggesting it's designed to exploit vulnerabilities. The embedded URLs, while not directly malicious, are part of the PDF structure.

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 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.
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 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` `dc333729b44c8123eb3c33e23dd5a4124b6d362a9b263e4bd67a97993d748cfd`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11325 bytes

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