Malicious PDF — malware analysis report

Static analysis result for SHA-256 17efaa7cdc5c133e…

MALICIOUS

PDF

101.9 KB
MD5: db2ccc65a624675a7d6f9e12632c5566 SHA-1: fea19edddc2328512b80269929b16090c13c0431 SHA-256: 17efaa7cdc5c133ebc0ca19ff2676267d09818c1fb31fae7994fc61cacaa9975
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA (XML Forms Architecture) content which is known to be vulnerable to CVE-2010-0188. The embedded JavaScript, when executed, is designed to exploit this vulnerability, likely leading to the download and execution of a secondary payload. The ML classifier and ClamAV detection strongly indicate 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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000346.bin
bba4691c744e4a17101353e9e32d9c46540266904aa4d2fc801dc3729d81ebf7
pdf-embedded-script PDF raw stream script payload at offset 0x346 103641 bytes