Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 8cd043daa314328a…

MALICIOUS

Office (OOXML)

41.6 KB Created: 2021-06-22 12:43:05 UTC Authoring application: Microsoft Excel 16.0300
MD5: c2aa00b5d617bda46c468b1cd8412439 SHA-1: 9d7d7fc02b0433c0db61185ff4ec60b887f4b0de SHA-256: 8cd043daa314328aa48c454af8d3afd49409505632167380b1d7c8845372d320
160 Risk Score

Malware Insights

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

The file is an OOXML document containing VBA macros. Heuristics indicate the VBA code references cmd.exe and PowerShell, suggesting it's designed to execute commands on the host system. The GetObject call further supports the likelihood of object manipulation for malicious purposes. The primary function of the VBA appears to be the execution of external commands, likely for downloading and running additional malicious content.

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
76bf41c510f88ee5d2d01dbbaff69dc7755debcbc451c6ed4f9b1bdbd9f6538a		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 35036 bytes
vbaProject_00.bin
cabeba6033f61d5281e1cc50aedc4a8cea8307e53dbc291074cfe7f1dffe7bdb		 vba-project OOXML VBA project: xl/vbaProject.bin 11264 bytes

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