Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f16ded15ed05fe6…

MALICIOUS

PDF

24.1 KB
MD5: 648e431861ba521ffb32ca931b87d0aa SHA-1: e259ad9e1e33dd28fff6e9cfb6f021a63624d2ac SHA-256: 9f16ded15ed05fe618643f1f398480ccd5f32f7dfc653d7c6c4e031ad52ed98d
130 Risk Score

Malware Insights

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

The sample is a PDF document that leverages the CVE-2010-0188 exploit, targeting Adobe Reader's XFA functionality. This exploit is known to download and execute arbitrary code. The embedded URL, while seemingly benign, is part of the XFA template structure and likely used in the exploit chain. ClamAV also identified this as Pdf.Exploit.Agent-36821.

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/