Malicious PDF — malware analysis report

Static analysis result for SHA-256 334c95be7ab7bf20…

MALICIOUS

PDF

5.4 KB Created: 2012-06-11 17:19:01 Authoring application: %
MD5: 47a5d703e86db0975b664b9bb15efc10 SHA-1: 784bff0fcd661421e8934463fb4c81732a8582de SHA-256: 334c95be7ab7bf2021a373687df5d8d5d4ca60aa32e91bece831bff5ec72ac91
80 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This suggests the primary attack pattern is to leverage this exploit for client-side code execution. No document body text or scripts were extracted, limiting further analysis 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00000315.bin
c618ca10b351eed38c099d16dc8d13c9fdf3bd757542ecedc2ebe6f67f944250
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x315 87957 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 long base64-like blob(s).