Malicious PDF — malware analysis report

Static analysis result for SHA-256 706df904ddc86c57…

MALICIOUS

PDF

79.6 KB
MD5: 03dca93cfa8ac7265421fc5f1df14559 SHA-1: c498bf62dc66218e7a47ae068bb0f466a0e3eeb0 SHA-256: 706df904ddc86c57c8cf474250dc698af8dad6a15c28f681f9d70a85b4aed42b
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, which is a critical finding. The embedded XFA script contains obfuscated JavaScript that, when deobfuscated, likely downloads and executes a second-stage payload. The script's complexity and the critical exploit indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • 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_00000288.bin
99bc0a57937fdbde1279c6ca1ccd7ab5a7e5c3cf10509291316e892f7d1773bd
pdf-embedded-script PDF raw stream script payload at offset 0x288 80746 bytes