PDF malware analysis — malicious · cb2582ca627cb2b9

MALICIOUS

PDF

123.5 KB

MD5: 4162a77277115a9499883a8464ad028b SHA-1: 964282ea114bcf7344a9a93a819126a1ee5965d3 SHA-256: cb2582ca627cb2b9c38e4528490883bed27aa524c3c2f8251606b4831b3d6298

88 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains an embedded script payload and utilizes XFA forms, indicating a malicious intent to exploit vulnerabilities. ClamAV detection as 'Pdf.Exploit.Dropped-78' further supports this. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality could not be fully determined due to obfuscation.

Heuristics 4

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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` `727b0c9859dd2c40b22d0ba747eba0efccabbb820db2a85077352f297b00f023`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	125739 bytes

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