PDF malware analysis — malicious · e2f133e982cff1a1

MALICIOUS

PDF

18.3 KB

MD5: f41c407c8bffa28287d0878e2b6efcda SHA-1: aae10f278522df1c2c082048ee5329be3828eb72 SHA-256: e2f133e982cff1a1dcaaafb890a3676ed0ef1f12ddd63d000d386cf43541499c

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an embedded script payload, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic and confirmed by ClamAV detections. The ML classifier also strongly flagged this file as malicious. The embedded URL, while not directly executable, is part of the document's structure. The primary attack vector appears to be the exploitation of vulnerabilities within the PDF reader via the embedded script.

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` `0de326639ad7b677c913a7da341f838bf2838492619235777282e8d4daa77306`	pdf-embedded-script	PDF raw stream script payload at offset 0x325	18025 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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