Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c4ebcd478bfa66…

MALICIOUS

PDF

5.5 KB Created: qHFdTlfA Authoring application: gfhersdd
MD5: eaa14c956ceb33879076e4b64499ebbe SHA-1: 3fbe1f41a9867ec609b5147cc9a8ba96a6aaef72 SHA-256: 32c4ebcd478bfa66619b405d59020d8ce05f43664a1faae6beffaad4938d0afc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded stream that triggers the CVE-2010-0188 exploit, targeting a vulnerability in Adobe Reader's handling of XFA forms and LibTIFF images. This exploit allows for arbitrary code execution. No document body text was available for further analysis, but the critical heuristic confirms the exploit's presence.

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_off000002e7.bin
4d82a69e546b4d804ebe5a93df780d956b173d10b3f7c0a744f4a5667ce20027
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E7 59513 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).