PDF malware analysis — malicious · 5e38df44829026fc

MALICIOUS

PDF

19.3 KB

MD5: 2dd8dc4d544948f217b1befe652dc9b9 SHA-1: a9edffede11716fb2b99197b072efcad615b666e SHA-256: 5e38df44829026fc63427d00a72c4b9daef5d6f442c2a7c5a68baf6282da440f

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF contains embedded script content and is flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-78'. The ML classifier also strongly indicates maliciousness. The embedded file suggests a dropped payload, likely executed via an exploit.

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` `04d74acfe44e064d66b3746c6eecdb24ded37769972b63dc21758b52c5d56ec3`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	18997 bytes

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