Malicious PDF — malware analysis report

Static analysis result for SHA-256 39a63beb271a3715…

MALICIOUS

PDF

24.1 KB
MD5: 6cef64cd9dbe29385afecdbf07e91585 SHA-1: bcf344836b80c46376bd27f9a885fb43f224d2ee SHA-256: 39a63beb271a3715ccdd8cd942e76f554331a105c3fb2a9745a1cab247cdfefa
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file identified as malicious by ClamAV and exhibits characteristics of the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. The embedded XFA payload suggests an attempt to execute arbitrary code. While no specific malware family is identified, the exploit's nature points towards a downloader or dropper mechanism. The obfuscated document body contains script-like elements that, if executed, would likely facilitate the download and execution of 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/