Malicious PDF — malware analysis report

Static analysis result for SHA-256 44223f9e356f30ae…

MALICIOUS

PDF

24.2 KB
MD5: 50ec8d23ecbfce4090341ae9c12fc649 SHA-1: df4c6eaa34f2f9bde27a0aefa2ba3036905f199e SHA-256: 44223f9e356f30aeb396c797f566a20e9700e3551e7ab910cf63967299c9af7b
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link T1204.002 Malicious Link

The sample is a PDF file that utilizes XFA forms and exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF processing. ClamAV also identified it as Pdf.Exploit.Agent-36821. The embedded URL, while seemingly benign, is part of the XFA template structure and likely used in the exploitation 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/

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