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

Static analysis result for SHA-256 2d061663c53c65b8…

MALICIOUS

Office (OLE) / .PPT

84.0 KB Created: 2022-01-31 19:05:41 Authoring application: Microsoft Office PowerPoint
MD5: 48fbdfaee137c605063bf44f5d8a421b SHA-1: c2cb14865e76e6d726891051b5659d36f708566b SHA-256: 2d061663c53c65b8ab9267feaeaa838904986921974686261352e65f4c2f4b7e
160 Risk Score

Malware Insights

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

The critical OLE_VBA_SHELL heuristic indicates the presence of a Shell() call within the VBA macros. The Auto_Close macro triggers the Uganda function, which concatenates strings from various form controls to construct a command. This command is then executed using Shell(). The specific command constructed is not fully reconstructible due to truncation, but the intent is to execute an arbitrary command. This is a common technique for downloading and executing further payloads.

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
eb3d4f986632f191c682f5cb0d77a6b52676b4e70ee1cdd84c9e160a79c4d5a7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2140 bytes

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