PDF malware analysis — malicious · 6421324c9262e4c1

MALICIOUS

PDF

11.2 KB

MD5: e919766bf3465e64ec24095d02b0c4c1 SHA-1: 2e6b05522a59751ca680afced42aa275444ba789 SHA-256: 6421324c9262e4c1c360afc0e72cf4e95ee5d08d06ae6095cc615fc818ebecf1

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Dropped-78, and a high ML score. It contains embedded artifacts and XFA form elements, indicating it is likely an exploit document. The embedded file suggests a dropped payload, which is a common technique for initial 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` `6895b6083519ae50ebe46bd6dff11a03bb93e0a7b5fc3d636244a584e0e2f9fc`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	10692 bytes

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