Malicious PDF — malware analysis report

Static analysis result for SHA-256 31e2d44ab42dd4ad…

MALICIOUS

PDF

24.2 KB
MD5: 1aa992471ab801ba5c374e905d2f61bd SHA-1: 843b0b12f427a5c455cb563793dd7865545b2f0e SHA-256: 31e2d44ab42dd4ad25c8b336c04c4bca8b228197c0eb693b74cabe4f0fa3d13a
128 Risk Score

Malware Insights

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

The file is a PDF containing an XFA form, which is known to be vulnerable to CVE-2010-0188. This exploit allows for arbitrary code execution. The embedded URL is likely part of the exploit chain or a lure. No scripts were extracted, but the critical heuristic firings strongly indicate exploitation of a known Adobe Reader vulnerability.

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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