Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5591ab3e7d73e66…

MALICIOUS

PDF

24.1 KB
MD5: 8569d6dfc07aaf80df13e683b230f1d5 SHA-1: e4ec3b1f146df118aac70bb8de69b3e94b6db300 SHA-256: d5591ab3e7d73e66e65eebeb7450e6afec54791458381a50d5e5d3b2b080c1af
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file identified as malicious by ClamAV, specifically flagging the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. The embedded URL is likely related to the exploit's functionality. The obfuscated JavaScript within the document body, though difficult to fully deobfuscate, appears to be part of the exploit chain.

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/