Malicious PDF — malware analysis report

Static analysis result for SHA-256 44bb02bb8a77f9be…

MALICIOUS

PDF

24.1 KB
MD5: aed2ef1353eb8eb56f53b1c1f0b3abf9 SHA-1: 3b640db566a43a8111313928b702e4d263678846 SHA-256: 44bb02bb8a77f9be89e61cac29e40e5e66cc68ed7d7fd52068a1a7a12abc763a
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 contains an XFA form, which is known to be vulnerable to exploitation. Specifically, the CVE-2010-0188 exploit targeting LibTIFF within XFA forms was detected. This exploit is designed to execute arbitrary code, likely to download and run a second-stage payload. The embedded URL, while seemingly benign, is associated with XFA templates and could be a lure or part of the exploit chain.

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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