Malicious PDF — malware analysis report

Static analysis result for SHA-256 e905b43ff2c860d5…

MALICIOUS

PDF

23.9 KB
MD5: 677ddd52c2f1788e8f34b5ea5d751b02 SHA-1: fbb92399f1917d8ed680863ca5906058684be955 SHA-256: e905b43ff2c860d5be0dd59b502055ab5626928475dc71fed83fe2711bd3b546
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.004 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that utilizes XFA forms and exploits CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component. The heuristic firings indicate that the exploit targets the XFA payload. The embedded URL, while seemingly benign, is part of the exploit chain. The ClamAV detection further confirms its malicious nature as Pdf.Exploit.Dropped-78.

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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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