Malicious PDF — malware analysis report

Static analysis result for SHA-256 754c60b1cd663360…

MALICIOUS

PDF

18.0 KB
MD5: 5f36c02052e0fcd63acb57ba4a743a55 SHA-1: 9c5a8abaa1de0f74297a014a1a5bfb672c65a13c SHA-256: 754c60b1cd66336097fc31dd909dc807bf0d35dca4e31e7708fb17479ba2bef1
200 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.003 Windows Command Shell

The PDF file is malformed and contains an OpenAction trigger that executes a launch action. This launch action targets cmd.exe, indicating an attempt to execute arbitrary commands. The malformed nature of the PDF suggests it is designed to exploit a vulnerability rather than present benign content. The primary goal appears to be the execution of a secondary payload via cmd.exe.

Heuristics 4

  • Launch action critical PDF_LAUNCH
    PDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
  • /Launch action target: cmd.exe critical PDF_LAUNCH_COMMAND
    PDF /Launch action specifies an executable target — references a known-dangerous executable (cmd, PowerShell, etc.).
  • Malformed PDF header with no object graph high PDF_MALFORMED_NO_OBJECT_GRAPH
    File starts with a PDF header but contains no indirect objects, xref table/stream, or startxref pointer. This is not a normal renderable PDF and can indicate parser fuzzing, evasion, or a corrupt exploit test case rather than benign content.
  • OpenAction trigger high PDF_OPENACTION
    PDF has an /OpenAction that launches, submits, or opens an external target