Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ae2a5560453d88…

MALICIOUS

PDF

24.1 KB
MD5: 6721f1d7744fcf9b572c732b4db1033e SHA-1: 8bd33924053ee9c58824bdda038fac82cd71de07 SHA-256: 00ae2a5560453d8860baa8b4a08718c7a00e684a4f7916feaaf162967f884f1c
162 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1059 Command and Scripting Interpreter T1190 Exploit Public-Facing Application

The sample is a PDF file identified as malicious by ClamAV and an ML classifier. Critical heuristics indicate it exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The embedded URL, while seemingly benign, is associated with XFA templates and could be part of the exploit chain. The document body contains obfuscated JavaScript-like content, suggesting an attempt to execute code.

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/