Malicious PDF — malware analysis report

Static analysis result for SHA-256 f284c910a8a25fdc…

MALICIOUS

PDF

24.0 KB
MD5: 3158cae77805990a42589632c596a99b SHA-1: 500789ea846e24b4179f2308d428be9936660864 SHA-256: f284c910a8a25fdc94ca103638fb3c2233f7e8a247273596c554995421fc66d1
130 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by ClamAV, specifically flagged as 'Pdf.Exploit.Agent-36821'. Static analysis indicates the exploitation of CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms. The embedded URL, while seemingly benign, is part of the exploit chain. The XFA form structure itself is indicative of an exploit delivery mechanism.

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/