Analysis
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max time kernel
143s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 12:06
Behavioral task
behavioral1
Sample
608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038.xls
Resource
win10v2004-20220812-en
General
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Target
608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038.xls
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Size
99KB
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MD5
0351fb6e1b638462fc8f42af53d9fe41
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SHA1
4b3b8deb885c65636855ead175234ca4f9d362fd
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SHA256
608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038
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SHA512
7d52a6edea19013efba87ea2fcca2a84021b2207b2e6c8d3233f06dc4c99171712417fa44ff81344ad34f32c8506ef9c504e52efe4bf893a5bb1154271e52dfe
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SSDEEP
1536:PlllBJTYaYo9wXF0Fn2jcc0lbxOvTgZeb2cJtXwgMK:VKg2jcc0lbxOrRFJtXwhK
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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3420 4212 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3472 4212 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4120 4212 cmd.exe EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\1E575E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4212 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE 4212 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 4212 wrote to memory of 3420 4212 EXCEL.EXE cmd.exe PID 4212 wrote to memory of 3420 4212 EXCEL.EXE cmd.exe PID 4212 wrote to memory of 3472 4212 EXCEL.EXE cmd.exe PID 4212 wrote to memory of 3472 4212 EXCEL.EXE cmd.exe PID 4212 wrote to memory of 4120 4212 EXCEL.EXE cmd.exe PID 4212 wrote to memory of 4120 4212 EXCEL.EXE cmd.exe PID 3420 wrote to memory of 2636 3420 cmd.exe attrib.exe PID 3420 wrote to memory of 2636 3420 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\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\system32\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\system32\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\system32\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
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Downloads
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memory/2636-142-0x0000000000000000-mapping.dmp
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memory/3420-139-0x0000000000000000-mapping.dmp
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memory/3472-140-0x0000000000000000-mapping.dmp
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memory/4120-141-0x0000000000000000-mapping.dmp
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memory/4212-135-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB
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memory/4212-137-0x00007FF8A76C0000-0x00007FF8A76D0000-memory.dmpFilesize
64KB
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memory/4212-138-0x00007FF8A76C0000-0x00007FF8A76D0000-memory.dmpFilesize
64KB
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memory/4212-136-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB
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memory/4212-132-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB
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memory/4212-133-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB
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memory/4212-134-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB
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memory/4212-144-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB
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memory/4212-145-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB
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memory/4212-146-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB
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memory/4212-147-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmpFilesize
64KB