MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
T1105 Ingress Tool Transfer
The sample is an Excel 4.0 macro sheet that contains a dangerous formula referencing Auto_Open, which is indicative of malicious intent. The macro sheet references external URLs that likely host a second-stage payload. Specifically, the macro uses ShellExecute and URLDownloadToFile APIs, suggesting it downloads and executes a file from the URLs provided. The presence of these APIs and the Auto_Open function strongly suggests a downloader or droppper attack pattern.
Heuristics 5
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Reference to URLDownloadToFile API critical SC_STR_URLDOWNLOADReference to URLDownloadToFile API
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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 http://zonicseller.com/lns.exe~
- http://zonicseller.com/lns.exe
- http://zonicseller.com/lns.ex
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_macros.txtaba668409be72a46cc2fbca4ce38dc373951c91dc07211d58670beb8c496dfe2 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 22262 bytes |
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