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

Static analysis result for SHA-256 99aa20e52a7af140…

MALICIOUS

Office (OLE) / .PPT

63.0 KB Created: 2020-04-26 20:51:00 Authoring application: Microsoft Office PowerPoint
MD5: 0ac712f8d1b974f4204b905e4591ba48 SHA-1: 3cc4e23a38bc6759806c032ad243504b0fff38bc SHA-256: 99aa20e52a7af14092d6d2eec925faab1aea6fde348921b31bb97e4c50ed8d84
220 Risk Score

Malware Insights

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

The presence of VBA macros, specifically an Auto_Close macro that calls the Shell() function, indicates that this file is designed to execute arbitrary code. The ClamAV detection name 'Doc.Dropper.Agent-7709455-0' further supports its role as a dropper. The Auto_Close macro is configured to execute a shell command, which is a common technique for downloading and executing additional malicious payloads.

Heuristics 5

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Dropper.Agent-7709455-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Agent-7709455-0
  • 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
e121594157497cab68dacc1f03bcb90d09913a4886eb63a54a50c30d61521f7b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 511 bytes

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