Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a9683cc385998ac…

MALICIOUS

PDF

79.4 KB
MD5: ffc4e6712b201ab327eaccd784fb406d SHA-1: 34742283d8eab20a8bbe5fe9511502954ebace83 SHA-256: 4a9683cc385998ac1fe0fb868bb5420acd7e8bb71f550dbf0e896f4d659f6db2
88 Risk Score

Malware Insights

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

The PDF file contains an XFA form and an embedded script payload, as indicated by the PDF_XFA and PDF_EMBEDDED_SCRIPT_PAYLOAD heuristics. ClamAV detection confirms this as malicious. The embedded script is likely responsible for delivering the exploit payload, though its exact function is obscured. The embedded URLs are related to Adobe XFA and are not considered malicious.

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_0000023c.bin
6727258bfc071af0061d297e3e978e5dc19f7825128d196feb5f1d76f4a86f55
pdf-embedded-script PDF raw stream script payload at offset 0x23C 80622 bytes