Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a2deffea86c6467…

MALICIOUS

PDF

13.9 KB
MD5: 42c121337f094f16639eb4de9ccbccab SHA-1: fb4df10f8451c8ebece95379470b50fe428cddf7 SHA-256: 4a2deffea86c6467344431b0b93b1b84ffe3205aab8efab24cf5bf631aa3c053
130 Risk Score

Malware Insights

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

The PDF file contains an XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF processing. ClamAV also detected this as Js.Exploit.HTML-30, indicating embedded JavaScript is likely used for exploitation. The embedded URL is likely related to the exploit delivery or a secondary payload. The script content is heavily obfuscated and appears to be JavaScript intended to download and execute a second-stage payload.

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: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • 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/