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

Static analysis result for SHA-256 56efae4f0b231844…

MALICIOUS

Office (OLE) / .XLS

67.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2026-06-19
MD5: 29b3647eb5631d23571497823e9efefe SHA-1: 7e334774727f14cd40e4483107998ba9e24556e6 SHA-256: 56efae4f0b23184473f9226306165472b87bf79c1b33626294100fa58fa8acb3
120 Risk Score

Heuristics 4

  • XLM Auto_Open workbook with payload URL or enable-content lure critical OLE_XLM_AUTOOPEN_PAYLOAD_LURE
    Workbook contains an Excel 4.0 macro sheet with Auto_Open / Auto_Close and also exposes a payload URL or enable-content lure in the OLE bytes. This combination is a high-confidence XLM downloader/social-engineering pattern even when formula recovery cannot decode the full macro chain.
  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • Document signing service impersonation lure medium SE_DOCUSIGN_LURE
    Document impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context

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