Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba600d7fb076ffc…

MALICIOUS

PDF

24.1 KB
MD5: b89f7f57bf9c6e28a587e727b49e07aa SHA-1: cadda1fe651a7b71f806c5d9201753682d8291a4 SHA-256: 7ba600d7fb076ffc2447556b71bdc85bff33ff48a0f6489f4e97a9b6e792e1c0
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1559.001 Component Object Model Hijacking: DLL Side-Loading

The sample is a PDF file that utilizes XFA forms, which is a known vector for exploiting vulnerabilities. Specifically, the 'CVE_2010_0188' heuristic indicates the use of the LibTIFF XFA image exploit. This exploit is designed to execute arbitrary code, leading to the download and execution of a secondary payload. The embedded URL, while seemingly benign, is part of the exploit chain.

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/