Malicious PDF — malware analysis report

Static analysis result for SHA-256 3748c3eda04e01b5…

MALICIOUS

PDF

23.9 KB
MD5: d8b8efa119d8b73990d42a63a8e3d302 SHA-1: d1b6dbe2202270a9a4c1a98f6f5a4a4f50762d53 SHA-256: 3748c3eda04e01b5fe75cfae13d98adf975a3c642a50c5d38fb8891d509120f9
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and LibTIFF. The embedded script, although obfuscated, appears to be involved in loading and executing content, consistent with a dropper or exploit loader. The ClamAV detection 'Pdf.Exploit.Dropped-78' further supports this. The embedded URL is likely related to the exploit or payload delivery.

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.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
  • 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/