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

Static analysis result for SHA-256 cf14b14227edbcb3…

MALICIOUS

Office (OLE) / .PPT

68.5 KB Created: 2021-06-23 21:14:32 Authoring application: Microsoft Office PowerPoint
MD5: a4e97c3baa850ef56942a0dd40c9bd83 SHA-1: 4e64d88f96aa8eb52e049019b949b038cac0ac26 SHA-256: cf14b14227edbcb33555c665434d671ebbf4152711a227c185103a00b3aa6eae
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell

The sample is a PowerPoint file containing VBA macros. The Auto_Close macro triggers a Shell() call which executes a function that concatenates strings to form a URL and then executes it. This indicates the file is designed to download and run a second-stage payload.

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
24e6d2c0d0ea9af341974fef2d17fc25f7f8198ea15ecb16ab40036bf9537e2c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 819 bytes

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