Malicious PDF — malware analysis report

Static analysis result for SHA-256 486017faf6e52db8…

MALICIOUS

PDF

24.1 KB
MD5: 06632c40f8a289fd2712fe81e3d95784 SHA-1: c714f0bf519d6f224d3d7e57e2294ae2628f3188 SHA-256: 486017faf6e52db8f89aec36a79392cc91fa7ad4911b4d17f89071fdbe6f3d42
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The sample is a PDF file that contains an XFA form, which is being exploited via CVE-2010-0188. This exploit targets a vulnerability in Adobe Reader's handling of LibTIFF within XFA forms. The embedded URL is likely related to the XFA template, but the primary malicious action is the exploit itself, which is designed 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: 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
  • 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/