PDF malware analysis — malicious · 176f79c16055a694

MALICIOUS

PDF

11.6 KB

MD5: 33384ddbc58e8c4f4f9ec736c9e5e79b SHA-1: 867754610ad916aa76f0d2d77125f7e44db99a87 SHA-256: 176f79c16055a694b65ed180dd890b946d263d47cf6da2c296268aaca555c200

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded script content and is flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Exploit.Dropped-78. The embedded script likely attempts to download and execute a second-stage payload, indicating an exploitation attempt for client execution.

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` `fd931e033192f2c6af0e44fa22d5eb1bbfda4a1e3a5d771b91f4ff885ee4e0bb`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11102 bytes

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