Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a3f3162475cb3f2…

MALICIOUS

PDF

13.9 KB
MD5: 2439269069afdd236be21c8f7114dc52 SHA-1: 9672dc1ce2af9a12a0faf7c3738027c3582887dc SHA-256: 9a3f3162475cb3f2ac9d979fc68c4ed0bdac90ddf69fa9c849549ba4cd016dbf
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that leverages the XFA form functionality to exploit CVE-2010-0188, a known vulnerability in Adobe Reader. ClamAV detected this as Js.Exploit.HTML-30, indicating embedded JavaScript is likely used for the exploit. The embedded URL is related to XFA schemas, further supporting the exploit vector. The primary attack pattern involves tricking the user into opening a malicious PDF that triggers an exploit.

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: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • 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/