Malicious PDF — malware analysis report

Static analysis result for SHA-256 78dd88ce75e1cd5b…

MALICIOUS

PDF

12.8 KB
MD5: 78ad9fd2fc9eb99e6d6bf857e3e82c66 SHA-1: f4f49f3e8573da03429b4da0bc454e0bbd915e88 SHA-256: 78dd88ce75e1cd5bd1fc07d9af2f5ee70668d216b48a5e556a7d82aa869f0667
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The sample is a PDF file that leverages XFA forms to exploit CVE-2010-0188 in Adobe Reader. ClamAV also detected it as Js.Exploit.HTML-30, indicating JavaScript-based exploitation. The embedded URL is likely related to the XFA template loading mechanism, but the primary exploit is the CVE-2010-0188 vulnerability.

Heuristics 4

  • 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: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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/