Malicious PDF — malware analysis report

Static analysis result for SHA-256 11bca0e588084fe5…

MALICIOUS

PDF

24.2 KB
MD5: dbeb60bd743c6a52b333641e149fe87a SHA-1: bb2d429bb23ed1992230b51a92cbc8d2794fd52e SHA-256: 11bca0e588084fe5ba026f236bac0f1589e07729221482ff0e5ae67f9706bc52
162 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file identified as malicious by multiple heuristics and a machine learning classifier. It specifically triggers the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. This exploit is known to facilitate arbitrary code execution, commonly used to download and run further malicious content. The embedded URL, while seemingly benign, is part of the XFA template structure and could potentially be leveraged in the exploit chain.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/