PDF malware analysis — malicious · 11609ca89c915315

MALICIOUS

PDF

12.0 KB

MD5: 78e2337f5ab3c30c9c67c83a38dcd541 SHA-1: 35376cab89371ec1e46d630b872ced181cd18c82 SHA-256: 11609ca89c9153153d1714beb725fbaff556713f1b81204eee67895a9b3d0794

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is a PDF with XFA forms and embedded scripts, flagged by ML and ClamAV as malicious. The embedded script payload and embedded file suggest the PDF is designed to exploit a vulnerability for client execution, likely delivered via spearphishing.

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` `32e10ff4abe338fdeaab863d6d5a8c4fcd2f229f10ea5b2657ed955af99e528d`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	11498 bytes

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