Malicious PDF — malware analysis report

Static analysis result for SHA-256 704413289256a5e2…

MALICIOUS

PDF

89.8 KB
MD5: f35c82ed1360e5d1b1801feaf7cc13cf SHA-1: 3e79a1ab3a4570d761fbfaf1b75a85c07fec9efb SHA-256: 704413289256a5e2e03d1990d534e83085d141b5b330aa471cc5971a3834530b
168 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that exploits CVE-2010-0188 in Adobe Reader to execute a payload. The embedded JavaScript, though obfuscated, is designed to construct and execute this payload. The benign URLs present are likely part of the XFA template structure and do not indicate malicious intent on their own.

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_0000023e.bin
954cc14a4879020ba5a4263f886481984144bafdebab983900b147036fe289ca
pdf-embedded-script PDF raw stream script payload at offset 0x23E 91187 bytes