Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b92a3d18a8a87e2…

MALICIOUS

PDF

24.2 KB
MD5: 5b287c6d889b70490363af3cac66756a SHA-1: 5323764f35e0f73b11b60401a0b6e4adf4261b98 SHA-256: 1b92a3d18a8a87e2fec24eacf2806006126e51301f529b16b76ff5c7a9cc5361
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. Heuristics indicate it exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA processing. This exploit is likely used to download and execute a second-stage payload, as suggested by the embedded URL. The ClamAV detection further confirms its malicious nature.

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/

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