Malicious PDF — malware analysis report

Static analysis result for SHA-256 0875cb44c4bec012…

MALICIOUS

PDF

20.3 KB
MD5: 136f691e74dd1f40e7d82f3b6783d8b2 SHA-1: 2ed62501a9d46ec60f31db8f90eb1f71442b5ea7 SHA-256: 0875cb44c4bec012aa0a0d573e02a0e440e3b7fedf50c41175606b36a4f07d0a
160 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, including a critical finding for CVE-2010-0188, which is an exploit targeting Adobe Reader's handling of XFA forms. The embedded URL, while seemingly benign, is present within the document structure. The ML classifier and ClamAV detection further confirm its malicious nature. The exploit is likely used to download and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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-36826 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36826
  • 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/

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