PDF malware analysis — malicious · f692e0741feb18a8

MALICIOUS

PDF

14.7 KB

MD5: b8d6b9833c40cb36231c5ffeb30309c7 SHA-1: 5fe2be7a956a6df126197d580f8dea27620ee721 SHA-256: f692e0741feb18a846d007eb41ebb7b255d7d44ba4804a69d7be7a66c70be8ad

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file utilizes XFA forms and contains an embedded script payload, as indicated by multiple heuristic firings including critical ClamAV detections. The ML classifier also strongly flagged this PDF as malicious. The embedded script is likely responsible for downloading and executing a second-stage payload, a common technique for PDF-based malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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_00000329.bin` `237bacc740486c09b8861d9452b6e603afb31306718a0529f43041275a4aca0a`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14314 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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