Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 6baaa716947ec694…

MALICIOUS

Office (OOXML)

41.6 KB Created: 2021-06-22 12:43:05 UTC Authoring application: Microsoft Excel 16.0300
MD5: e69e7853be84890bf220f14aacda27e0 SHA-1: 042f919e7dd315847a2fdd2ac3d8fe7e3b4122c2 SHA-256: 6baaa716947ec69472a05604ca56d4e5b9609f880f83ddf28a9c22769c051f6e
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 file is an OOXML document containing VBA macros. Heuristics indicate the VBA code references PowerShell and cmd.exe, and uses GetObject, suggesting it's designed to execute arbitrary commands. The VBA code itself appears to be obfuscated, but its presence and the associated heuristics strongly suggest a downloader or initial execution stage for a more complex attack.

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
817388ce91ac5339d4ae8ab3270cc033181fa22a81cd798a19f3e2914667edc8		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 35036 bytes
vbaProject_00.bin
b01bb336ffd2093fa3a96c1c9334cc744d6c2fc448a9e2fcd23c3a59a2775cd5		 vba-project OOXML VBA project: xl/vbaProject.bin 11264 bytes

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