Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a68816ae37d8bfe…

MALICIOUS

PDF

24.2 KB
MD5: 780d8f01a63ffe77b087e4bd121dd932 SHA-1: 9cf9ca55061a81979e866dc84259f28376767f53 SHA-256: 3a68816ae37d8bfe98445f501b659ee2c3a2403c0b8b93c4b4744d9b375d89a9
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 document identified as malicious by ClamAV. Static analysis detected the use of XFA forms and a critical vulnerability, CVE-2010-0188, which is known to exploit Adobe Reader. The embedded URL, while seemingly benign, is often used in conjunction with such exploits to download further stages of the attack. The exploit targets Adobe Reader's handling of TIFF images within XFA forms.

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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