Malicious PDF — malware analysis report

Static analysis result for SHA-256 adde8dc4aaff002a…

MALICIOUS

PDF

51.0 KB
MD5: 57a799f62779956899e896779e250825 SHA-1: 1285b219008e6309743aa43660547e9752fefd68 SHA-256: adde8dc4aaff002a39bb8835dbd0a0e63ea1d95520d98e033c38fcc84efba430
88 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. ClamAV also detected this file as Pdf.Exploit.Agent-6136306-0, suggesting it's a known exploit. The XFA form detected by the PDF_XFA heuristic is often used to host malicious content. While the embedded script itself was not detailed, its presence alongside the exploit detection strongly suggests it's designed to download and execute a secondary payload. The embedded URLs are likely related to the XFA form structure but could also be used for command and control or payload delivery.

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_00000240.bin
711da04d67761ea0a0e514d18f71e47b5df2b88dc97028fa8740f78428a723db
pdf-embedded-script PDF raw stream script payload at offset 0x240 51490 bytes