Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3df71eb50403c74…

MALICIOUS

PDF

12.8 KB
MD5: 9650d21d6e09db8b068ae370049b0ec8 SHA-1: b40a4b784ce2036c2ae95bed930df0946e6805ea SHA-256: a3df71eb50403c74cf01a946effc21ddd8b9f9dd57ff16a9c0bc06853b678218
88 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. ClamAV also detected this file as Pdf.Exploit.Agent-6136306-0. The embedded script is likely responsible for downloading and executing a second-stage payload, contributing to the malicious nature of the document. The presence of an XFA form further suggests a complex document structure potentially used to hide malicious content.

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.

FilenameKindSourceSize
embedded_pdf_script_00000359.bin
ad6e3ebd8d2ad431d33bd26902291ea81cffd610aa5d885afbcdd6d85341ea45
pdf-embedded-script PDF raw stream script payload at offset 0x359 12342 bytes