PDF malware analysis — malicious · ec5cbefff3bf7ca4

MALICIOUS

PDF

100.4 KB

MD5: a0a2d780ec799a2457b91e1d491a6e0c SHA-1: e10891222fd14a268431774fe59ea3b692d6e9ef SHA-256: ec5cbefff3bf7ca416b2903b0ef97d7de3dd0d2a703f21fb35fab80888cd46f9

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution - Malicious PDF

The PDF utilizes XFA forms, a known vector for exploitation. A high-confidence ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script payload, detected by heuristics, is likely responsible for delivering the exploit. The specific nature of the embedded script could not be fully determined due to obfuscation, but its presence within an XFA PDF is a critical indicator of a malicious document.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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://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_00000246.bin` `afc37333b92f1f5ea1b0e803784bd18c062a8a5b616119e6cd31735670d96ff5`	pdf-embedded-script	PDF raw stream script payload at offset 0x246	102040 bytes
Detection ClamAV: Pdf.Exploit.Agent-36769 Obfuscation or payload: unlikely

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