Malicious PDF — malware analysis report

Static analysis result for SHA-256 21c9772c312fb49f…

MALICIOUS

PDF

24.1 KB
MD5: 2d16e57f39cca026b3a53267505d5316 SHA-1: cff075e617961fb53187382f0562adbfee24c0f9 SHA-256: 21c9772c312fb49f2e8cf52a5bebeac9baf5033fb2a83616805f53764690ceb7
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter

The sample is a PDF document that contains an XFA form, which is a known vector for exploiting the CVE-2010-0188 vulnerability in Adobe Reader. The heuristic firings confirm the presence of this exploit. The embedded URL is likely part of the exploit chain or a lure. No scripts were extracted, but the exploit itself is sufficient to classify the attack pattern.

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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