Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eb0fd1458863f08…

MALICIOUS

PDF

24.1 KB
MD5: 9d046445fb1cdfe91dd37ebb8f640b1c SHA-1: ec36dfe8fd4e568393341723f290cd7aea4d0d1e SHA-256: 0eb0fd1458863f0887cd3ab2f546bf23cebd64b50fa002990e353960a6dfe137
162 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple heuristics, including a critical finding for CVE-2010-0188, which is an Adobe Reader LibTIFF XFA image exploit. The presence of XFA form elements and the specific exploit detection strongly suggest exploitation for client execution. The embedded URL, while seemingly benign, is part of the XFA structure and could potentially be used in a malicious context, though its exact role is unclear without further analysis of the exploit's behavior. The ML classifier also flagged this PDF with very high confidence.

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-36821 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36821
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/