Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad33e48401568e2…

MALICIOUS

PDF

24.1 KB
MD5: ca9fac1fcf77e6be5c87216d20183b7d SHA-1: 8e7c98136f4edad0855bc78394a723f260ea14e6 SHA-256: fad33e48401568e231079c363981b953aecb10887cffb3d1e6806dd3a59e2bc9
128 Risk Score

Malware Insights

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

The sample is a PDF file that contains an XFA form, which is a known vector for exploiting Adobe Reader vulnerabilities. Specifically, the CVE-2010-0188 heuristic indicates the exploitation of a LibTIFF vulnerability within XFA, commonly used to deliver second-stage malware. The embedded URL, while benign in appearance, is often used in conjunction with such exploits. The ClamAV detection further confirms its malicious nature.

Heuristics 4

  • 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
  • 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/