Malicious PDF — malware analysis report

Static analysis result for SHA-256 6529de32d854cfa6…

MALICIOUS

PDF

75.8 KB
MD5: 7bf796de472283c142562c427462c6aa SHA-1: 236ea664da55d541d1771f5b89f032a5242eabef SHA-256: 6529de32d854cfa687339f5d5c3e8007598b499fe08f9b1904148c09a225ed9e
168 Risk Score

Malware Insights

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

The PDF file contains an XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader. An embedded JavaScript payload is present, which is likely responsible for executing the exploit. The script is heavily obfuscated, but its presence and the exploit firing indicate malicious intent. The benign URLs extracted are likely unrelated to the exploit itself.

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_00000286.bin
a0f0e431492e324ab91c56f05caf402b62513f8d7655316fc1756ade99198747		 pdf-embedded-script PDF raw stream script payload at offset 0x286 76862 bytes

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