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

Static analysis result for SHA-256 3d41e810491fc842…

MALICIOUS

Office (OLE) / .XLS

50.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 62403678badde0b67435b89c480a8865 SHA-1: 917d303ca73fbd412e42a816c5ccfeb1645e3713 SHA-256: 3d41e810491fc842ec3bf1dfa11efa2f285dcfc26cd3ec57728fc7a664e4f004
80 Risk Score

Malware Insights

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

The file is an Excel 4.0 (XLM) spreadsheet containing an Auto_Open macro. The 'SE_ENABLE_LURE' heuristic indicates the document likely instructs the user to enable macros. The 'OLE_XLM_DANGEROUS_FN' heuristic firing on the RUN function suggests the macro attempts to execute an external program. The embedded URLs are likely used to download and execute a second-stage payload. No scripts were extracted from this sample.

Heuristics 4

  • XLM Auto_Open with dangerous formula APIs high OLE_XLM_DANGEROUS_FN
    Excel 4.0 macro sheet contains an Auto_Open / Auto_Close entry and dangerous XLM formula APIs that can invoke programs, write files, or transfer control without VBA.
  • 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 http://dev.katevictoriabeauty.co.uk/gphxtbi/D�
    • http://dev.katevictoriabeauty.co.uk/gphxtbi/530340.png

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
45b4f94c83359e2a46263d63d250b98c93cb3dbfb36ada0502977190009317bb		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 3584 bytes

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