Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cb5f2c0635f72a8…

MALICIOUS

PDF

20.2 KB
MD5: 839adb6ffd93abf0c44ec7f5889b7a94 SHA-1: f90ead82fed6efc4858f53d608a2cb1a65ca53de SHA-256: 2cb5f2c0635f72a88abed0391350936d983d4eed68b67b78c825994ea2442e24
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file identified as malicious by ClamAV, specifically flagging an XFA form exploit (CVE-2010-0188). This exploit targets Adobe Reader and is designed to execute arbitrary code. The embedded URL, while seemingly benign, is part of the XFA template structure and could potentially be used in conjunction with the exploit. The primary attack vector is likely a phishing attempt where the user is tricked into opening the malicious PDF.

Heuristics 5

  • 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-36826 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36826
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/