PDF malware analysis — malicious · 575e2acb1ca5e31a

MALICIOUS

PDF

18.4 KB

MD5: b25221b63501456226057bbaef7622fb SHA-1: b98c67c67044460942529ab9c0594ae8fdababb5 SHA-256: 575e2acb1ca5e31abf6b42f91a0ea9cd4a1c7e869f962fe90878d91986db300a

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious PDF T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file was flagged as malicious by multiple engines, including a critical ClamAV detection (Pdf.Exploit.Agent-36789). It contains an embedded script payload and utilizes XFA forms, common characteristics of PDF-based exploits. The embedded URL, while not directly malicious, is part of the document's structure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36789 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36789
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.
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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000325.bin` `3e8a323d2c8c3c692ad5adce5eac12c67a5e9157e096d7a269e084428e6b74bf`	pdf-embedded-script	PDF raw stream script payload at offset 0x325	18141 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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