Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4dc027197b291ba…

MALICIOUS

PDF

24.1 KB
MD5: 80e1cdd5708459119b4cd6f8e4c3e4da SHA-1: c97dd62736850ae0cca6d69f24b8154ce972de18 SHA-256: b4dc027197b291ba4478e19e8c62ba8fb1aa59606d021ee0c3760d52069c1142
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.001 PowerShell

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability, known to affect Adobe Reader's handling of XFA forms. The heuristic firings indicate that the XFA payload was decoded from a raw stream, confirming the exploit attempt. The embedded URL, while seemingly benign, is part of the exploit infrastructure. No scripts were extracted, but the core attack relies on the PDF exploit itself.

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/