PDF malware analysis — malicious · 208f85901c4fe086

MALICIOUS

PDF

18.4 KB

MD5: cfae89ef748c358de8849d0bae3911e3 SHA-1: 211a996362d6af0f5c07dcf46e4225ad9b093919 SHA-256: 208f85901c4fe086c8ca30300692d037c3c66d561400f57445c9f05f96150407

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1059.007 Command and Scripting Interpreter: JavaScript

The PDF file contains an embedded script payload and utilizes XFA forms, both flagged as malicious by heuristics and ML classifiers. ClamAV detections further confirm its malicious nature, identifying it as an exploit agent. The embedded URL, while not directly actionable, 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` `cbf7f2071dbf3556ece118172798ec1cb20d3a8ecaa1cf3e888bb079b4efa5ac`	pdf-embedded-script	PDF raw stream script payload at offset 0x325	18077 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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