Malicious PDF — malware analysis report

Static analysis result for SHA-256 917fe536aa7cfb05…

MALICIOUS

PDF

24.1 KB
MD5: 2932f8e28da55d54c775a3384c35837e SHA-1: 1c91fbb2e84b9c4791362de2022c991717b0d4fa SHA-256: 917fe536aa7cfb05c87ce02250442ef5ae3464b7c6173c5608ed316257b3986f
130 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by ClamAV and exhibits characteristics of an XFA form exploit. Specifically, the CVE-2010-0188 heuristic indicates the exploitation of a LibTIFF vulnerability within Adobe Reader's XFA processing. The embedded URL, while seemingly benign, is part of the XFA structure and likely used in the exploit chain. The attack pattern involves luring the user to open 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: 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/