Malicious PDF — malware analysis report

Static analysis result for SHA-256 95aa60e1d20120a7…

MALICIOUS

PDF

24.1 KB
MD5: 3a9cdd4beb129c89e4b9c91930887763 SHA-1: e03a6d59fd84d1093207af4cfdd9428da4db79df SHA-256: 95aa60e1d20120a7e5717ee462c62f464a464fc11d4bbdcc45ed51254e47c80d
128 Risk Score

Malware Insights

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

The sample is a PDF file that contains an embedded XFA form, which is a known vector for exploiting vulnerabilities in Adobe Reader. Specifically, the 'CVE_2010_0188' heuristic indicates exploitation of the LibTIFF vulnerability within Adobe Reader's XFA processing. This exploit likely leads to the execution of a second-stage payload, as suggested by the ClamAV detection 'Pdf.Exploit.Agent-36821'. The embedded URL, while not directly malicious in this context, is part of the XFA template structure.

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/