PDF malware analysis — malicious · 12bb06ab20273558

MALICIOUS

PDF

19.0 KB

MD5: 8c4867d4a30f484e62e0b0a149caf216 SHA-1: 88de65922b26ba6250a6f951ec3231da4d4b61c0 SHA-256: 12bb06ab20273558a97255c0ec615096e937c168b88de1ec79c5c6220f56c3ec

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is a PDF document identified as malicious by ClamAV and a machine learning classifier. It contains embedded content and an XFA form, which are often used to exploit vulnerabilities. The embedded file and the ML classification strongly suggest it's a dropper for a secondary payload.

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` `379b262a5737665fc07edd3247c63ebc16368a1fecbb8fe51ce8fdd84e226ac2`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	18702 bytes

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