Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f5ca6de4749b930…

MALICIOUS

PDF

24.1 KB
MD5: 0f2c41928f1934838d05db2dd8b5b2fd SHA-1: 6d100cecfcadca758f78c94771f8259c1aee6397 SHA-256: 0f5ca6de4749b9306cd1c1cfd4a38945c77982f2dd419fd7dca2df29b7a69635
162 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by multiple heuristics and a machine learning classifier. It specifically targets CVE-2010-0188, an exploit within Adobe Reader's handling of XFA forms and LibTIFF, indicating an attempt to execute arbitrary code upon opening. The embedded URL, while seemingly benign, is associated with XFA templates and may be part of the exploit chain. No scripts were extracted, and the document body contained obfuscated JavaScript-like content that could not be reliably interpreted.

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/