Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf90dfd6bcca1c4f…

MALICIOUS

PDF

24.1 KB
MD5: f913253c893e265b228a7541d4b5675b SHA-1: 03d3eb9fd4b181ab2f6ef9f3548bbe9724ae004b SHA-256: cf90dfd6bcca1c4f72aac2ebce4cd10633a3c35dcdaca72fe0a601059b894a73
130 Risk Score

Malware Insights

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

The sample is a PDF document that leverages the CVE-2010-0188 exploit, targeting Adobe Reader's LibTIFF component. This exploit is known to be used for delivering various types of malware. The embedded URL, while seemingly benign, is part of the XFA form structure which is often abused in exploit documents. No scripts were extracted, and the document body was heavily fragmented, making it difficult to determine the exact nature of the payload.

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/