Malicious PDF — malware analysis report

Static analysis result for SHA-256 591c866da81a7cfb…

MALICIOUS

PDF

24.1 KB
MD5: 97005f67f4d0d2e2594cfad99cd481a2 SHA-1: 95221f4de5bbae151a2bd85ed21126888e638fef SHA-256: 591c866da81a7cfbc28afbbdd2a4a43c4eeb482e9f8102ef6eae6d9b40ad6c2c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The sample is a PDF file that triggers the CVE-2010-0188 exploit, targeting Adobe Reader. This exploit is known to be used for delivering various types of malware. The presence of an embedded URL further supports the malicious intent, likely for downloading a secondary payload. The XFA form structure is a common vector for this type of 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/