Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 36cf2fff0626ce04…

MALICIOUS

Office (OOXML)

41.6 KB Created: 2021-06-22 12:43:05 UTC Authoring application: Microsoft Excel 16.0300
MD5: 140cd682d880254b90ee36dc51a1a271 SHA-1: 012c33ff8e6d4f1bbff65da8672f5b080813659a SHA-256: 36cf2fff0626ce04e99f1cffe56293b68d585a402d103bae0844f3c581515f88
160 Risk Score

Malware Insights

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

The OOXML document contains VBA macros that reference cmd.exe and PowerShell. The GetObject call and the presence of VBA macros suggest an attempt to execute arbitrary code. The script's functionality appears to be obfuscated, but the references to cmd.exe and PowerShell indicate a likely downloader or execution mechanism for a second-stage payload.

Heuristics 4

  • PowerShell reference in VBA critical OLE_VBA_PS
    PowerShell reference in VBA
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • cmd.exe reference in VBA high OLE_VBA_CMD
    cmd.exe reference in VBA
  • VBA project inside OOXML medium OOXML_VBA
    Document contains a VBA project — VBA macros present

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
194ffdc4f3b25467166d82423c02b01bbfbba28722e4eef9c2c8197f1eccaac9		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 35036 bytes
vbaProject_00.bin
bd1df417a6b5a00211b3e9d64f48c7e711de682b6de65db97750b37de948dc00		 vba-project OOXML VBA project: xl/vbaProject.bin 11264 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.