MALICIOUS
160
Risk Score
Heuristics 4
-
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.
-
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.
-
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.
-
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) | 3450 bytes |
SHA-256: 1d8c71bddddfff23698648e1aa3dc1ab56b834b29b31ff3f7bd5761dbedce138 |
|||
Preview scriptFirst 1,000 lines of the extracted script
' 0085 14 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, visible - Sheet
' 0085 18 BOUNDSHEET : Sheet Information - Excel 4.0 macro sheet, visible - LdqMbGxUF
' 0018 21 LABEL : Cell Value, String Constant - aEmGjD len=0
' 0018 557 LABEL : Cell Value, String Constant - aSaNa len=8 ptgArrayA *INCOMPLETE FORMULA PARSING* Remaining, unparsed expression: b'\x00\x11\x00\x00\x00\x00\x00'
' 0018 23 LABEL : Cell Value, String Constant - built-in-name 1 Auto_Open len=7 ptgRef3d Sheet!C136
' 0018 27 LABEL : Cell Value, String Constant - fJQuS len=7 ptgRef3d LdqMbGxUF!F43
' 0018 22 LABEL : Cell Value, String Constant - FzAn len=3 ptgInt 0
' 0018 24 LABEL : Cell Value, String Constant - hKCBGW len=3 ptgInt 0
' 0018 26 LABEL : Cell Value, String Constant - IHAG len=7 ptgRef3d LdqMbGxUF!I48
' 0018 27 LABEL : Cell Value, String Constant - JHtkU len=7 ptgRef3d LdqMbGxUF!A42
' 0018 30 LABEL : Cell Value, String Constant - JpMBgRyG len=7 ptgRef3d LdqMbGxUF!C53
' 0018 27 LABEL : Cell Value, String Constant - JWBPn len=7 ptgRef3d LdqMbGxUF!G55
' 0018 27 LABEL : Cell Value, String Constant - kPbkc len=7 ptgRef3d LdqMbGxUF!D40
' 0018 32 LABEL : Cell Value, String Constant - lbvWHtMyqH len=7 ptgRef3d Sheet!C78
' 0018 22 LABEL : Cell Value, String Constant - mUeW len=3 ptgInt 0
' 0018 23 LABEL : Cell Value, String Constant - NZvMk len=3 ptgInt 0
' 0018 29 LABEL : Cell Value, String Constant - orJnDFV len=7 ptgRef3d LdqMbGxUF!H45
' 0018 29 LABEL : Cell Value, String Constant - polITZH len=7 ptgRef3d LdqMbGxUF!B48
' 0018 123 LABEL : Cell Value, String Constant - RqvZcyg len=8 ptgArrayA *INCOMPLETE FORMULA PARSING* Remaining, unparsed expression: b'\x00\t\x00\x00\x00\x00\x00'
' 0018 27 LABEL : Cell Value, String Constant - TITYp len=7 ptgRef3d LdqMbGxUF!E58
' 0018 27 LABEL : Cell Value, String Constant - vsVWB len=7 ptgRef3d LdqMbGxUF!J41
' 0018 2035 LABEL : Cell Value, String Constant - yFfad len=8 ptgArrayA *INCOMPLETE FORMULA PARSING* Remaining, unparsed expression: b'\x00%\x00\x00\x00\x00\x00'
' 002a 2 PRINTHEADERS : Print Row/Column Labels
' 00fd 10 LABELSST : Cell Value, String Constant/ SST
' 00fd 10 LABELSST : Cell Value, String Constant/ SST
' 00fd 10 LABELSST : Cell Value, String Constant/ SST
' 002a 2 PRINTHEADERS : Print Row/Column Labels
' Sheet,Reference,Formula,Value
' Sheet,D39,"ABC",""
' Sheet,D40,[],""
' Sheet,J40,"ABC",""
' Sheet,A41,"ABC",""
' Sheet,J41,[],""
' Sheet,A42,ROWS(aSaNa),""
' Sheet,F42,"ABC",""
' Sheet,F43,[],""
' Sheet,H44,"ABC",""
' Sheet,H45,[],""
' Sheet,B47,"ABC",""
' Sheet,I47,"ABC",""
' Sheet,B48,ROWS(RqvZcyg),""
' Sheet,I48,[],""
' Sheet,C52,"ABC",""
' Sheet,C53,aSaNa,""
' Sheet,G54,"ABC",""
' Sheet,G55,RqvZcyg,""
' Sheet,E57,"ABC",""
' Sheet,E58,[],""
' LdqMbGxUF,C81,"A"&"B",""
' LdqMbGxUF,C82,[],""
' LdqMbGxUF,C86,"SET.VALUE(C119,"")",""
' LdqMbGxUF,C91,"mUeW",""
' LdqMbGxUF,C96,"DEFINE.NAME("hKCBGW",0)",""
' LdqMbGxUF,C100,[],""
' LdqMbGxUF,C103,"hKCBGW",""
' LdqMbGxUF,C107,"['C119', 'C119']",""
' LdqMbGxUF,C111,"FzAn",""
' LdqMbGxUF,C115,NEXT(),""
' LdqMbGxUF,C121,"['C119', '"LdqMbGxUFR!R"']",""
' LdqMbGxUF,C125,"aEmGjD",""
' LdqMbGxUF,C130,NEXT(),""
' LdqMbGxUF,C133,RETURN(),""
' LdqMbGxUF,C138,"DEFINE.NAME("aEmGjD",148)",""
' LdqMbGxUF,C147,lbvWHtMyqH(),""
' LdqMbGxUF,C148,HALT(),""
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.