Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 ab26726e609a9bdf…

MALICIOUS

Office (OLE)

338.5 KB Created: 2020-07-13 11:03:58 Authoring application: Microsoft Excel First seen: 2020-09-15
MD5: ded0cf25e3e815a3a95d8f1bcb147117 SHA-1: 0e16066c6b6ee508a506b4a47d3a1fea125d18d9 SHA-256: ab26726e609a9bdfafed8c50c4187f9a36e727e47d7ab5c587ba93f725db5464
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is an Excel 4.0 macro sheet that is encrypted. Heuristics indicate the presence of an encrypted macro sheet and an auto-open macro, which are commonly used to deliver malicious payloads. The lack of readable document body text or scripts makes it difficult to determine the exact payload or intent.

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.