PDF malware analysis — malicious · 85f9156392ece734

MALICIOUS

PDF

11.8 KB

MD5: b1dbfdd311db5ab23744e3adfe0fb3a0 SHA-1: 80971bab2cbaebc8fbafe702dc155d823b16537a SHA-256: 85f9156392ece734b1d5959ebd6dcadc96fc30ab727d93e120291214489135a0

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 and an ML classifier, indicating it's likely an exploit. The presence of an embedded file and XFA form suggests it's designed to execute arbitrary code, likely downloading a secondary payload. The embedded file is named 'embedded_file_obj0008.bin'.

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` `a858b64905463c97ea5edc101d3afe00d7df8dc5fd63d491f28972876a96ea9f`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11331 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.