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

Static analysis result for SHA-256 be54208f63e59991…

MALICIOUS

Office (OLE) / .PPT

65.5 KB Created: 2020-05-12 22:04:03 Authoring application: Microsoft Office PowerPoint
MD5: f39cac29aac4eac0593a1d816332991d SHA-1: eb0dd61f7258c23125d9b0cdb8742f89ae11b237 SHA-256: be54208f63e59991a5cd9f5864486a5807f3cab84a54786b39a1e9cac3815c6a
200 Risk Score

Malware Insights

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

The file contains VBA macros, specifically an Auto_Close macro, which is designed to execute automatically when the presentation is closed. The critical heuristic firing indicates a Shell() call within the VBA, suggesting the macro attempts to execute arbitrary commands. The presence of CreateObject and p-code auto-execution further supports the malicious intent. The macro likely downloads and executes a second-stage payload, although the specific details are obfuscated.

Heuristics 5

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • 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
647295dde1ee854c4eb92e3a7c8008303d3b5b7a6fc747a91d8a30471e785be1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1040 bytes

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