Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b0982b1f59d45e0…

MALICIOUS

PDF

24.1 KB
MD5: 4768aa4ca104ff057117c6d405dc0473 SHA-1: 321e3a42c6d9aa7cf40468869b63f5cde21266d7 SHA-256: 8b0982b1f59d45e08fd4423dfb280e918d0321c3fc3674481f6025f88a7d85f6
128 Risk Score

Malware Insights

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

The file is a PDF document that contains an XFA form, which is a known vector for exploiting Adobe Reader vulnerabilities. Specifically, the 'CVE_2010_0188' heuristic indicates exploitation of LibTIFF within Adobe Reader's XFA processing. This exploit is designed to download and execute a second-stage payload. The embedded URL, while seemingly benign, is part of the XFA template structure and could be used in the exploit chain.

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: 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
  • 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/