PDF malware analysis — malicious · 9381e6d26e544a25

MALICIOUS

PDF

42.5 KB

MD5: 0cbc5e9189ecaf15aa09ac6beed9063b SHA-1: d6a403221f323ca1c7f823b56098424f0fc8d272 SHA-256: 9381e6d26e544a254c12c56062f689f0451c0566d9345c1103a906702e89d9c3

186 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The PDF file was flagged as malicious by multiple engines, including ClamAV which identified it as 'Pdf.Exploit.Agent-36830'. Heuristics indicate the presence of an embedded script payload and an embedded file, suggesting it is designed to exploit a vulnerability. The ML classifier also strongly indicated maliciousness. No specific family could be identified, but the attack pattern is consistent with a PDF-based exploit delivery.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.
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 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` `a80fb99ead01a12fa91af7c127fad01559a81ff027d28afa19ead306baa7cd58`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42791 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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