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

Static analysis result for SHA-256 edbbeedc35f9e31b…

MALICIOUS

Office (OLE) / .XLS

331.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: db7ce53d1895991b8c43c37ffeca19c7 SHA-1: 9ba8a7722519c2fe079f1b8e47b8b411c8e6f1de SHA-256: edbbeedc35f9e31b29ecee75a5caff7990db7287f5dd28693d2d5e647d8494d4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File

This Excel 4.0 macro-enabled spreadsheet contains an Auto_Open macro that utilizes dangerous functions like RUN and CALL to execute arbitrary code. The presence of ShellExecute API calls further indicates the intent to launch external processes. The macro likely downloads and executes a second-stage payload from the embedded URL.

Heuristics 5

  • ClamAV: Doc.Downloader.Docusign0521-9864805-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Docusign0521-9864805-0
  • Reference to ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • 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.
  • 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://fisicamp.com/ds/231120.gif
    • https://fisicamp.com/ds/231120.gif�

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
3ee92379b19800bb1e16b96d76e4f31800c6dabf549bf8665d8d4ceab7eae6c0		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 6060 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.