Malicious PDF — malware analysis report

Static analysis result for SHA-256 29acac7eb3ea7f42…

MALICIOUS

PDF

24.1 KB
MD5: 1f3678968764412fdaa3b743a9cd06c1 SHA-1: 21bfe4b24ee45b70aa46ecf2784e23725f5af7f7 SHA-256: 29acac7eb3ea7f42e985ba0239739becca5b17145fdaa9fc248c9b6ea303e114
128 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV. Static analysis detected the use of XFA forms and specifically the CVE-2010-0188 exploit targeting LibTIFF within the XFA payload. This exploit is known to be used for delivering second-stage malware. The embedded URL, while seemingly benign, is part of the XFA template structure and could potentially be used in conjunction with the exploit.

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/