Analysis
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max time kernel
151s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2022 14:01
Behavioral task
behavioral1
Sample
c827c06b8d0656a0885398577a150e3e9a5a34aa8d7902693f599e13638c4d4d.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
c827c06b8d0656a0885398577a150e3e9a5a34aa8d7902693f599e13638c4d4d.xls
Resource
win10v2004-20221111-en
General
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Target
c827c06b8d0656a0885398577a150e3e9a5a34aa8d7902693f599e13638c4d4d.xls
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Size
109KB
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MD5
60c38b854d589f183efb61a4a35417c8
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SHA1
9eef3058c4293e6d38e06b284b8438e6bac73996
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SHA256
c827c06b8d0656a0885398577a150e3e9a5a34aa8d7902693f599e13638c4d4d
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SHA512
07a9f4f0d8fb84aa536c4c31038367f53539ba026a621f184889f5bfa9620ee4553b595204517be0724b2563792e4c44ec46ff23f0dba550a078aa543e415e21
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SSDEEP
3072:MrQn6v7yZmspH7+7alMisPI4ukoRWGNgrG2AEWVbrzr6B7ITkPSyww33XjUJtXw+:CQn6v7yZmspH7+7alMisPI4ukoRWGNgk
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 4588 1476 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2552 1476 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3048 1476 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 opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\3DF75E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1476 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
EXCEL.EXEpid process 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 16 IoCs
Processes:
EXCEL.EXEpid process 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE 1476 EXCEL.EXE -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 1476 wrote to memory of 3428 1476 EXCEL.EXE splwow64.exe PID 1476 wrote to memory of 3428 1476 EXCEL.EXE splwow64.exe PID 1476 wrote to memory of 4588 1476 EXCEL.EXE cmd.exe PID 1476 wrote to memory of 4588 1476 EXCEL.EXE cmd.exe PID 1476 wrote to memory of 2552 1476 EXCEL.EXE cmd.exe PID 1476 wrote to memory of 2552 1476 EXCEL.EXE cmd.exe PID 1476 wrote to memory of 3048 1476 EXCEL.EXE cmd.exe PID 1476 wrote to memory of 3048 1476 EXCEL.EXE cmd.exe PID 4588 wrote to memory of 4336 4588 cmd.exe attrib.exe PID 4588 wrote to memory of 4336 4588 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\c827c06b8d0656a0885398577a150e3e9a5a34aa8d7902693f599e13638c4d4d.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:3428
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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
PID:4588 -
C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
PID:4336 -
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
PID:2552 -
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
PID:3048
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:4248
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C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\ee5c5976a5d843188d51a6c4347f9ec9 /t 1460 /p 14761⤵PID:1176
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1476-132-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmpFilesize
64KB
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memory/1476-134-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmpFilesize
64KB
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memory/1476-133-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmpFilesize
64KB
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memory/1476-135-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmpFilesize
64KB
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memory/1476-136-0x00007FFCDDAD0000-0x00007FFCDDAE0000-memory.dmpFilesize
64KB
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memory/1476-137-0x00007FFCDB720000-0x00007FFCDB730000-memory.dmpFilesize
64KB
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memory/1476-138-0x00007FFCDB720000-0x00007FFCDB730000-memory.dmpFilesize
64KB
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memory/2552-141-0x0000000000000000-mapping.dmp
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memory/3048-142-0x0000000000000000-mapping.dmp
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memory/3428-139-0x0000000000000000-mapping.dmp
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memory/4336-143-0x0000000000000000-mapping.dmp
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memory/4588-140-0x0000000000000000-mapping.dmp