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

Static analysis result for SHA-256 8973acd3ca4b85b5…

MALICIOUS

Office (OLE) / .XLS

525.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2026-05-23
MD5: e76fd54e521bf028986fa796d423d130 SHA-1: 0a1db6900f4e8974aff91afbfad5008d247e82c8 SHA-256: 8973acd3ca4b85b5bee68eaa95cd645ed89ca647551b19775928d494705d2076
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1204.002 Malicious File

The sample is an Excel 4.0 (XLM) workbook containing an Auto_Open macro, which is a common lure to enable content. The embedded macro attempts to download and execute a payload from the URLs hxxps://aravindanavada.com/AHt5r3T0VSlq/solo.html and hxxps://mrcrgroup.com/sOyQynNJYBY/solo.html. This indicates a malicious document designed to bypass security controls and deliver a secondary payload.

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
  • 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://aravindanavada.com/AHt5r3T0VSlq/solo.html In document text (OLE body)
    • https://mrcrgroup.com/sOyQynNJYBY/solo.htmlIn document text (OLE body)

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