PDF malware analysis — malicious · b4ca465060d57cdb

MALICIOUS

PDF

12.8 KB

MD5: 82c133171b572d965d04e70d93d9b374 SHA-1: 9638c2dc6a2c35ee1faf211061fec713b5e184b9 SHA-256: b4ca465060d57cdbd55f27bff0a4d6d0cbdb17635b4022b75aba98d23a3f4c0e

88 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. ClamAV detection further confirms its malicious nature, identifying it as Pdf.Exploit.Agent-6136306-0. The embedded script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured by obfuscation. The presence of an XFA form also suggests a potential vector for exploit execution.

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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_00000359.bin` `fa82e79b1c2c5b301fd37c0f8d5d6699d83b1b1c28ea2b1616daf973cf2faca2`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12426 bytes

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