Malicious PDF — malware analysis report

Static analysis result for SHA-256 db996b0cd799e978…

MALICIOUS

PDF

79.3 KB
MD5: 33532279b41f18c3c7cc9bc1e5b3ebc1 SHA-1: 7f2830ec706537e656f026b011a32dea294811ea SHA-256: db996b0cd799e978eead518425133ee69f2fbe5738f410022417cfe019c7705c
118 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 and the presence of an embedded PDF script artifact. The ML classifier and ClamAV detection strongly suggest malicious intent, likely exploiting a known PDF vulnerability (Pdf.Exploit.Agent-6136306-0). The XFA form further supports this, as XFA forms are sometimes used to host exploits. 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://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
3a70e56b8b73a7f3a1d7aedff9f8d7e0eaf6ec45f8ac1dcf8f43e0fff8bbc13c
pdf-embedded-script PDF raw stream script payload at offset 0x23C 80459 bytes