PDF malware analysis — malicious · 44f40113c7b8545f

MALICIOUS

PDF

42.5 KB

MD5: 36ff93319b574559412ab5701c957e3d SHA-1: ecbafdf119e18e2878dae93a7a1282485d9e4a1c SHA-256: 44f40113c7b8545fa26d612a2973a15f59b44e3be38a498d1379440345c1f3f2

186 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF was flagged by multiple heuristics, including ML classification and ClamAV detection, as malicious. The presence of an embedded script payload and an embedded file indicates an attempt to exploit vulnerabilities. The ClamAV detection name 'Pdf.Exploit.Agent-36830' suggests a known exploit targeting PDF documents.

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` `9dd5f714bab85ade5a1e247e98330b16e1ce1fe8eb3bacfc4e027fb4f499a700`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42752 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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