Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 d2e97f62318ba39a…

MALICIOUS

Office (OOXML)

41.5 KB Created: 2021-06-22 12:43:05 UTC Authoring application: Microsoft Excel 16.0300
MD5: 7eaddfac710b3dc1b83407afae747438 SHA-1: ec50d2e89473ab9a91b0008431dc2b9d07db246d SHA-256: d2e97f62318ba39a63b07cda5eb3de875e516fb751a9b52101c5c2d83bbad78a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1059.003 Windows Command Shell T1204.002 Malicious File

The Excel 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 Base64 decoding, likely to conceal a malicious payload or download URL.

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
aa289512f7c1cb1a5dbf0333878da659bb8fc6a43b7fc01ff65394cf53d3e23c		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 34430 bytes
vbaProject_00.bin
432c8c960e7693179dfffded60af9b00b558759b13a65d74fd0572d1c31fd76b		 vba-project OOXML VBA project: xl/vbaProject.bin 11264 bytes

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