MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic for Applications
T1204.002 Malicious File
The presence of Excel 4.0 macros, specifically an Auto_Open macro utilizing dangerous functions like RUN, strongly indicates malicious intent. The macro is likely responsible for executing a payload, as suggested by the ShellExecute API reference. The embedded URL points to a potential download source for this payload. The ClamAV detection further corroborates the malicious nature of the file.
Heuristics 5
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ClamAV: Doc.Downloader.Docusign0521-9864805-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Downloader.Docusign0521-9864805-0
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Reference to ShellExecute API high SC_STR_SHELLEXECReference to ShellExecute API
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XLM Auto_Open with dangerous formula APIs high OLE_XLM_DANGEROUS_FNExcel 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.
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Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPENWorkbook 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.
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Embedded URL info EMBEDDED_URLOne 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://fu5on.com/ds/231120.gif
- https://fu5on.com/ds/231120.gif�
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_macros.txtfc23abdcb2657b335d0fb386451be5be98110592c06d0600d83d33c16e5bacb2 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 6295 bytes |
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