Malicious PDF — malware analysis report

Static analysis result for SHA-256 7677951c25b356db…

MALICIOUS

PDF

381.9 KB
MD5: ef02a710ac725cc9d2769c44bd9dd215 SHA-1: 22ae65480c1664fa4973adbf2f95610e87b3d07d SHA-256: 7677951c25b356db37c27b8d2055086e1db2e9b19ce38e4c96f1041e1cc44641
210 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.003 Windows Command Shell

The PDF file contains a launch action that executes cmd.exe. This command chain is indicative of CVE-2010-1240, which is used to drop and execute a VBScript dropper. The dropper likely downloads and executes a second-stage payload, although the full payload and its destination are not detailed in the provided evidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • Adobe Reader Launch action VBS dropper command chain critical CVE likely CVE_2010_1240_LAUNCH_VBS_DROPPER
    PDF uses a CVE-2010-1240-style Launch action: cmd.exe is invoked from /Launch and builds a VBS stage that uses ADODB.Stream, MSXML2.XMLHTTP, or FileSystemObject to write or execute a payload.
  • 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 with parameters '/c echo Set o=CreateObject("Scripting.FileSystemObject"' — references a known-dangerous executable (cmd, PowerShell, etc.).

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