PDF malware analysis — malicious · c45661376df2681c

MALICIOUS

PDF

79.3 KB

MD5: 228fa12785a337f521b280b579bb8548 SHA-1: de4b76abfdd4770c7121b1fd20b8a461355ada58 SHA-256: c45661376df2681ce5be3d8f390fb38df2d3a855a6788b630198ca930271431e

120 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF utilizes XFA forms, a known vector for exploits. A critical ClamAV detection and a high ML score confirm its malicious nature. The embedded script payload, though not directly analyzed for its specific actions, is indicative of a secondary stage download or execution, common in PDF-based attacks. The embedded URLs are likely part of the exploit chain or C2 infrastructure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
Embedded script payload in PDF stream medium 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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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_pdf_script_0000023c.bin` `17fb3558eacd068f29fe90ed82422817f13f12943512a8eef19c799a83a1aaca`	pdf-embedded-script	PDF raw stream script payload at offset 0x23C	80536 bytes

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