Malicious PDF — malware analysis report

Static analysis result for SHA-256 09fae67764c380f4…

MALICIOUS

PDF

99.2 KB
MD5: 1a784f489f6c27982dfae2625e638ad0 SHA-1: 54158c63dfb289eb375513b78547a9cc60977408 SHA-256: 09fae67764c380f4978d81e181af6860f0f4ae8b79622fb173ca65fc28064c6b
108 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF utilizes XFA (XML Forms Architecture) and contains an embedded JavaScript payload. The JavaScript appears to be obfuscated and attempts to reconstruct a string, likely a URL or command, for further execution. This behavior, combined with the ClamAV detection of 'Pdf.Exploit.Agent-6136306-0', strongly indicates an exploit targeting PDF vulnerabilities to deliver a secondary stage. The benign URLs extracted are related to XFA specifications and do not appear to be malicious.

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
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low 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.
  • 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_0000026c.bin
befa5a86d5ed9e1da99375432a1597ee3222281d1f8d049fc02b20a396854f01		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 100809 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.