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

Static analysis result for SHA-256 62a043b348929fa1…

MALICIOUS

Office (OLE) / .XLS

397.0 KB Created: 2020-11-18 21:59:48 Authoring application: Microsoft Excel
MD5: 1f29be209fd50a1c5a2e836b885e4e07 SHA-1: 2812a8a68b0662f8650721287449c1e70b86a0a2 SHA-256: 62a043b348929fa157ea8deef65ab96b5c094b73a9c14a96c75c2ab1e7427758
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is an Excel file containing an encrypted Excel 4.0 macro sheet, indicated by the OLE_XLM_ENCRYPTED_MACROSHEET heuristic. This suggests the file is designed to run malicious macros when opened. The specific payload and execution method are obscured by encryption, preventing further analysis of its exact behavior or IOCs.

Heuristics 2

  • Encrypted Excel 4.0 macro sheet high OLE_XLM_ENCRYPTED_MACROSHEET
    Workbook contains an Excel 4.0 macro sheet and BIFF FILEPASS encryption. Password-protected XLM macro sheets, especially the default Excel password path, are a common malware evasion pattern because static formula extraction may fail until the workbook is decrypted.
  • Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN
    Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.

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