MALICIOUS
160
Risk Score
Heuristics 4
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Excel 4.0 Auto_Open defined name critical OLE_XLM_AUTOOPEN_DEFINEDNAMEoletools recovered an Auto_Open / Auto_Close entry from an Excel 4.0 macro sheet. The raw BIFF name can be tokenized or partially opaque to byte-string checks, but the recovered macro listing confirms the workbook has an XLM auto-execution entry.
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XLM Auto_Open with dangerous formula APIs critical 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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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_macros.txt |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 89838 bytes |
SHA-256: 927f6580fa8e2dc93dc32592f912aecc86573faaece3001e9a7aa729b18dbd95 |
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Preview scriptFirst 1,000 lines of the extracted script
' 0085 23 BOUNDSHEET : Sheet Information - Excel 4.0 macro sheet, hidden - wrgBriwHpocOpM ' 0085 20 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - BnOkjMsLwBa ' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet ' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet ' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet ' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet ' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet ' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet ' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet ' 0085 15 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet1 ' 0085 15 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet1 ' 0085 15 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet1 ' 0085 15 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet1 ' 0085 15 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet1 ' 0085 15 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet1 ' 0085 15 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, hidden - Sheet1 ' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, visible - Sheet ' 0018 34 LABEL : Cell Value, String Constant - aaNzbxKYGXJNmbYSkhF len=0 ' 0018 62 LABEL : Cell Value, String Constant - aBmDGJBZDhRNCWNDRbKKwjLhtIpHswXLICURoKiokwzOjlu len=0 ' 0018 46 LABEL : Cell Value, String Constant - abZePIPtHGWZcUtIBlTVpSXkvQdRDeB len=0 ' 0018 21 LABEL : Cell Value, String Constant - aCYWyg len=0 ' 0018 39 LABEL : Cell Value, String Constant - aOXvpTVCWbjZFOONSovDhutK len=0 ' 0018 23 LABEL : Cell Value, String Constant - built-in-name 1 Auto_Open len=7 ptgRef3d wrgBriwHpocOpM!CK29651 ' 0018 42 LABEL : Cell Value, String Constant - aWizzWXgElPeLRksiOJKINxqxcD len=0 ' 0018 35 LABEL : Cell Value, String Constant - axsWYFZemcIRRQUryGkw len=0 ' 0018 30 LABEL : Cell Value, String Constant - ayFBNQezCLVQsJb len=0 ' 0018 46 LABEL : Cell Value, String Constant - bgSYfwXWmcfXvZECjYsiZnxggTTuEQr len=0 ' 0018 45 LABEL : Cell Value, String Constant - bjZFzByEovDTttKzCtTvaYGuPGwKVE len=0 ' 0018 51 LABEL : Cell Value, String Constant - BvZoHbuoeKTTSXIBImzyPSVNlBtdMOiLQdnJ len=0 ' 0018 19 LABEL : Cell Value, String Constant - bWLf len=0 ' 0018 23 LABEL : Cell Value, String Constant - bWzPiCVQ len=0 ' 0018 43 LABEL : Cell Value, String Constant - bXjzBWYhFmPfMSltiOKKJOyrydEp len=0 ' 0018 32 LABEL : Cell Value, String Constant - cfXvLEnVYsVZnxTgT len=0 ' 0018 52 LABEL : Cell Value, String Constant - cgiazcHrmbvmdqCkjXJkHThPgTXwkicurOkJP len=0 ' 0018 26 LABEL : Cell Value, String Constant - chSLTwKJZdf len=0 ' 0018 36 LABEL : Cell Value, String Constant - CjBmqQqCvOLhEcUQctIdR len=0 ' 0018 53 LABEL : Cell Value, String Constant - cROIaXuQouqCGUprBLFiyRlFyoUddcgSLSwJJY len=0 ' 0018 54 LABEL : Cell Value, String Constant - cSxstrwhaiMnYosumMoTEznJypEOwwjWwTgubsf len=0 ' 0018 37 LABEL : Cell Value, String Constant - DcrkUCEZCGUeyNzmNjiLsK len=0 ' 0018 20 LABEL : Cell Value, String Constant - dcsvy len=0 ' 0018 35 LABEL : Cell Value, String Constant - DDCHrxGWwvMCFwVydbJx len=0 ' 0018 35 LABEL : Cell Value, String Constant - DosTHExQNkGekgsvKfhq len=0 ' 0018 38 LABEL : Cell Value, String Constant - DPghDENlSvLrxRZPupqoteX len=0 ' 0018 64 LABEL : Cell Value, String Constant - DtHRzznZBXjxfwimNBysLIezYeampFabkupTiBVoiYENOMRCu len=0 ' 0018 20 LABEL : Cell Value, String Constant - DUGKj len=0 ' 0018 62 LABEL : Cell Value, String Constant - eDSLudfzchuFanbNoLKlTkWaBamgxvSnMFBMdrOBLidHIoJ len=0 ' 0018 40 LABEL : Cell Value, String Constant - eJjVlprjJlQBvkFvm ... (truncated) |
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