Malicious PDF — malware analysis report

Static analysis result for SHA-256 b778526f64ecfc2c…

MALICIOUS

PDF

24.2 KB
MD5: cb9b062a63bce9a1b3ee4291cd9e3a55 SHA-1: a7bf69c20b2ab26c67ac817e3038dd0328a506e8 SHA-256: b778526f64ecfc2c10311d8dfc72ab706cfd44493aa23abe77ac45edce39223d
130 Risk Score

Malware Insights

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

The sample is a PDF document that utilizes XFA forms, triggering the critical heuristic for CVE-2010-0188, an Adobe Reader exploit. This indicates the document is designed to be opened with a vulnerable version of Adobe Reader to execute arbitrary code. The embedded URL, while seemingly benign, is part of the XFA template structure and could potentially be used in conjunction with the 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: 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/