Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbb38f59eb52719e…

MALICIOUS

PDF

24.1 KB
MD5: 49b4d8fb86e17a3d8d614887fd5723b1 SHA-1: 72c9d685e072d3d37a45803d0b50fea9edde33d5 SHA-256: cbb38f59eb52719e8d0831140258bcc37d51ab7c2844bb487b70fcdcc7e6917b
128 Risk Score

Malware Insights

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

The sample is a PDF document identified as malicious by ClamAV. Static analysis detected the use of XFA forms and a critical vulnerability, CVE-2010-0188, which is an Adobe Reader LibTIFF XFA image exploit. This indicates the file is designed to exploit a known vulnerability in Adobe Reader upon opening. The embedded URL is likely related to the XFA template but does not appear to be a direct payload delivery URL.

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/