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

Static analysis result for SHA-256 396aefeb57411d0b…

MALICIOUS

Office (OLE) / .PPT

54.5 KB Created: 2020-03-23 11:26:17 Authoring application: Microsoft Office PowerPoint
MD5: a6058257767a279c9a22dd1a6391c389 SHA-1: 22e867e3530f062921f475faf2c69bfdf0d4ac51 SHA-256: 396aefeb57411d0b8d595e9e5c19aadbe9dcb7130a910e1f17087aa42c9a2f59
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell

The file is a PowerPoint presentation containing VBA macros. The critical heuristic 'OLE_VBA_SHELL' indicates the use of the Shell() function, and the 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristic points to an Auto_Close macro that executes Shell(). This suggests the macro is designed to run an external command, likely to download and execute a secondary payload. No specific family could be identified.

Heuristics 4

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close macro
  • 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
3272196a41d4e77fb5d165e420aead2e953f821d1854aed56e485ab2ea7b1d16		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 136 bytes

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