Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a8fedec7bfec0d2…

MALICIOUS

PDF

24.1 KB
MD5: 6c8721b45e556cff587209b58adeb7db SHA-1: 5ce8a93dd335476ca115c085bcafee4076a3eba6 SHA-256: 4a8fedec7bfec0d26ddf9ac13668c8d411fae5e852a3d5452829ed5c7052edc4
130 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by ClamAV, specifically flagging an exploit for CVE-2010-0188 related to XFA forms in Adobe Reader. The embedded URL, while not directly malicious, is part of the XFA template structure. The document body contains obfuscated JavaScript that likely attempts to download and execute a secondary payload, a common technique for exploiting this vulnerability.

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/