Malicious Office (OLE) / .PPT — malware analysis report

Static analysis result for SHA-256 90c4e7b75190f1f8…

MALICIOUS

Office (OLE) / .PPT

87.0 KB Created: 2006-08-16 00:00:00 Authoring application: Microsoft Office PowerPoint
MD5: 576e9839a6c4962165443b464ff46c81 SHA-1: 3f2b8a5f9146277c3c4ae5402de3d35429de3bf1 SHA-256: 90c4e7b75190f1f8333d8688bb624b22d5dd9a019dedbf38880b8bfe9b050780
220 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The presence of VBA macros, specifically an Auto_Close macro and calls to CreateObject and ShellExecute, strongly suggests malicious intent. The Auto_Close macro is designed to execute automatically when the presentation is closed, and the CreateObject and ShellExecute calls are commonly used to launch external processes or scripts. No specific family could be identified, but the techniques used are consistent with macro-based malware delivery.

Heuristics 6

  • Reference to ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
fc2d8433d2d186faa1bef3e8a65e6c0e59de23fcd6e8a4c31695f347999d6384		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 658 bytes

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