Malicious PDF — malware analysis report

Static analysis result for SHA-256 1757554a8386cbea…

MALICIOUS

PDF

79.5 KB
MD5: 3ae9e3abc4b237ac3d5d2e94b42d7246 SHA-1: 080536db6653e5ff2eb92adc9dd508f2665ff0e4 SHA-256: 1757554a8386cbea61aecae231017199451b5da8782c47ea2f35cf1514b6c5df
168 Risk Score

Malware Insights

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

The PDF sample contains embedded XFA form data and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. The embedded script, identified as JavaScript, is heavily obfuscated but appears to be responsible for decoding and executing a payload. The script's complexity and the exploit's nature suggest a malicious intent to compromise the user's system.

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
446b10819f704990d0a9f8df7c6b247e4a43606bb1b5b9d7394e5563e5a6ec0d		 pdf-embedded-script PDF raw stream script payload at offset 0x288 80672 bytes

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