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

Static analysis result for SHA-256 e886e8d5b602e8b8…

MALICIOUS

Office (OLE) / .XLS

525.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2026-05-23
MD5: 1695b6b4e865b1b8bb0490f686fca948 SHA-1: 01de3166e3b7fd0c0a8b5b3844459cc63f753bea SHA-256: e886e8d5b602e8b8f24688d821954fc616b1c27100bea8bf7a51e713e95b2221
142 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1204.002 Malicious File

The presence of an XLM macro sheet and a lure to enable macros strongly suggests a malicious intent. The document body contains obfuscated strings that appear to be related to downloading and executing files, referencing URLs that are likely part of the attack chain. The XLM macro sheet is a strong indicator of older, but still active, macro-based malware delivery techniques.

Heuristics 5

  • 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 uses dangerous capability functions high OLE_XLM_DANGEROUS_FN_STATIC
    Workbook contains an Excel 4.0 macro sheet whose formulas reference two or more dangerous capability functions (e.g. CALL into a Win32 API such as URLDownloadToFile, EXEC to launch a process, REGISTER an external DLL procedure, or FWRITE/FOPEN to drop a file) with an Auto_Open / Auto_Close auto-execution name. This is the canonical XLM downloader/dropper shape and is recovered directly from the BIFF records, so it fires even when the full macro chain cannot be deobfuscated.
  • 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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://kashishbd.com/qLQ59E1q2/solo.html In document text (OLE body)
    • https://maatdeur.com/aTmGQK0DBT/solo.htmlIn document text (OLE body)

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