Analysis
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max time kernel
103s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
27-11-2022 19:58
Behavioral task
behavioral1
Sample
679ad72d01e3d20197f244943a258916a21b9e8cf9dd6e7952e4726bf7317ee5.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
679ad72d01e3d20197f244943a258916a21b9e8cf9dd6e7952e4726bf7317ee5.xls
Resource
win10v2004-20221111-en
General
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Target
679ad72d01e3d20197f244943a258916a21b9e8cf9dd6e7952e4726bf7317ee5.xls
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Size
78KB
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MD5
a79c7ab6a921807da9ba58b07e1cd865
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SHA1
98452c34ff97647284fb68e83b70cf17d9658763
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SHA256
679ad72d01e3d20197f244943a258916a21b9e8cf9dd6e7952e4726bf7317ee5
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SHA512
cb7828cc4233b16fc40d195525b8b5f3cabe40393a486c0a79a26c6020d6544cf1c123d1307d241baae63a770acae7e2cfe7751b5bafd93649a5f318b261b96f
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SSDEEP
1536:ZSToT2jcc0lbxOqTgncCOU/WwF133qmc:B2jcc0lbxOKrDWqmc
Malware Config
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.execmd.execmd.exedescription pid pid_target process target process Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1740 2040 cmd.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 308 2040 cmd.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1600 2040 cmd.exe EXCEL.EXE -
Deletes itself 1 IoCs
Processes:
EXCEL.EXEpid process 2040 EXCEL.EXE -
Office loads VBA resources, possible macro or embedded object present
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Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Processes:
EXCEL.EXEdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\D4FC6000\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2040 EXCEL.EXE -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
EXCEL.EXEpid process 2040 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
EXCEL.EXEpid process 2040 EXCEL.EXE 2040 EXCEL.EXE 2040 EXCEL.EXE 2040 EXCEL.EXE 2040 EXCEL.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 2040 wrote to memory of 1740 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 1740 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 1740 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 1740 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 308 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 308 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 308 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 308 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 1600 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 1600 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 1600 2040 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 1600 2040 EXCEL.EXE cmd.exe PID 1740 wrote to memory of 1920 1740 cmd.exe attrib.exe PID 1740 wrote to memory of 1920 1740 cmd.exe attrib.exe PID 1740 wrote to memory of 1920 1740 cmd.exe attrib.exe PID 1740 wrote to memory of 1920 1740 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\679ad72d01e3d20197f244943a258916a21b9e8cf9dd6e7952e4726bf7317ee5.xls1⤵
- Deletes itself
- Enumerates system info in registry
- Modifies Internet Explorer settings
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/308-220-0x0000000000000000-mapping.dmp
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memory/1600-221-0x0000000000000000-mapping.dmp
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memory/1740-219-0x0000000000000000-mapping.dmp
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memory/1920-222-0x0000000000000000-mapping.dmp
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memory/2040-73-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-78-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-66-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-67-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-68-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-71-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-72-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-70-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-69-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-75-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-76-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-74-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-54-0x000000002F3E1000-0x000000002F3E4000-memory.dmpFilesize
12KB
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memory/2040-79-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-80-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-65-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-77-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-83-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-86-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-85-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-84-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-82-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-81-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-87-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-109-0x000000000092F000-0x0000000000938000-memory.dmpFilesize
36KB
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memory/2040-58-0x00000000760D1000-0x00000000760D3000-memory.dmpFilesize
8KB
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memory/2040-57-0x0000000072AAD000-0x0000000072AB8000-memory.dmpFilesize
44KB
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memory/2040-56-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/2040-55-0x0000000071AC1000-0x0000000071AC3000-memory.dmpFilesize
8KB
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memory/2040-223-0x0000000072AAD000-0x0000000072AB8000-memory.dmpFilesize
44KB
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memory/2040-385-0x0000000072AAD000-0x0000000072AB8000-memory.dmpFilesize
44KB