Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6d6ed37d8bae57d…

MALICIOUS

PDF

100.4 KB
MD5: 9de018a0b15de98cb0d189adaba9c0f7 SHA-1: 6e1cb760d8d2b1de7bdd25b510b75790070a982e SHA-256: f6d6ed37d8bae57d1dbc9562c0206ed45de4befe3ef067cc4ff8eb2b8eeea5bd
118 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating it contains an exploit. The presence of an XFA form and an embedded script payload strongly suggests the file is designed to leverage these features for malicious purposes. The embedded script likely downloads and executes a second-stage payload, a common technique for initial access.

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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000246.bin
6413169b8eaecf80ab82cc91d380a7390ea1e844d5015934287963c7f3ad2b58
pdf-embedded-script PDF raw stream script payload at offset 0x246 102040 bytes