PDF malware analysis — malicious · 3887b206a06f624c

MALICIOUS

PDF

12.8 KB

MD5: d30e89b13b8919ad77b2d05db86adc36 SHA-1: 7be569b3c6963e90ba4ac26fa6c3a58b272a4316 SHA-256: 3887b206a06f624c18c77ded0ca99b15297b6f55bcc650271ee8c21154cdea7c

118 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a PDF identified as malicious by ClamAV and an ML classifier. It contains an embedded script payload, a common technique for exploiting vulnerabilities or delivering further malware. The presence of XFA form elements and an embedded script suggests an attack vector aimed at exploiting PDF reader vulnerabilities. The embedded script is likely responsible for downloading and executing a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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` `75a31bfef42d55a0a665ad303989b9cda66a921791033386941f3204ce3cc53a`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12386 bytes

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