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

Static analysis result for SHA-256 89ccaf26e055497d…

MALICIOUS

Office (OLE) / .XLSX

159.0 KB Created: 1996-10-21 11:03:58 Authoring application: Microsoft Excel First seen: 2022-04-15
MD5: 5885f7ebbc13a84356122f2f78a9b789 SHA-1: d8199db1d53f38decc834b83dcab69cae7c33ac5 SHA-256: 89ccaf26e055497d1bdc14fb644a07402a69beb33c38a151e2f4561d0ad766ef
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.005 Visual Basic

The file is an Excel spreadsheet containing VBA macros. The Workbook_Open macro is designed to execute automatically when the file is opened. Its primary function appears to be to hide a sheet named 'data' and adjust row formatting, which is a common technique used to conceal malicious content or further stages of an attack. No external network activity or further payload execution was detected by static analysis.

Heuristics 2

  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • 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
ee0f4689bcce5021892fa5baaee356f7159b7d46edb92685c6e2c47f2302d4e7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10193 bytes

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