Malicious PDF — malware analysis report

Static analysis result for SHA-256 14916efedb879ff1…

MALICIOUS

PDF

75.8 KB
MD5: 2f09571552122589111637990d1a7652 SHA-1: 1f72208a9e82009d8c0bb2531affd01e547773d1 SHA-256: 14916efedb879ff13074479f49141cdfdd0c162d21e2fcfd93dcf7382e45c4fe
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA (XML Forms Architecture) data which is exploited via CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF processing. The embedded script, though obfuscated, is designed to execute a second-stage payload. ClamAV also detected this as Pdf.Exploit.Agent-6136306-0, confirming its malicious nature.

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
8cac8560f7a9ff10046ded7f72f3f5c1e37462abdad6a43f2295007a79957fe5		 pdf-embedded-script PDF raw stream script payload at offset 0x286 76948 bytes

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