Malicious PDF — malware analysis report

Static analysis result for SHA-256 b966583d751668fa…

MALICIOUS

PDF

24.2 KB
MD5: 990195068344bdf2bb609cd408619314 SHA-1: eecc73573cb980fa30b64342def637106939e942 SHA-256: b966583d751668fa6db4501fb49f0481319ce7d0456afff98f10d3b2003eaaff
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The sample is a PDF file that leverages XFA forms and exploits CVE-2010-0188, a known vulnerability in Adobe Reader's handling of LibTIFF images within XFA content. This exploit is designed to download and execute a malicious payload. ClamAV also identified this file as Pdf.Exploit.Agent-36821, further confirming its malicious nature.

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/