Analysis
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max time kernel
59s -
max time network
34s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
04-09-2024 22:06
Behavioral task
behavioral1
Sample
94c4e47f8d07964aa50f0247b42d01681613f11d388c030c6835025e35b23340.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
94c4e47f8d07964aa50f0247b42d01681613f11d388c030c6835025e35b23340.xls
Resource
win10v2004-20240802-en
General
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Target
94c4e47f8d07964aa50f0247b42d01681613f11d388c030c6835025e35b23340.xls
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Size
36KB
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MD5
2a6c974ade619678d91e3b57ba12ecbc
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SHA1
bf54cb05e94a86a5dabc5e79a36e4ca4665d33f1
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SHA256
94c4e47f8d07964aa50f0247b42d01681613f11d388c030c6835025e35b23340
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SHA512
5a8d495896cca9621f931a4f36cd752433bdee6c4a5a30314bba9c1ab7b515a84f90e2976b300acf9ad927b57f2952b5488e6a15a7c70f6ff5ece62292db61b6
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SSDEEP
768:NPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJeShw1bfnFLk2nZKG:lok3hbdlylKsgqopeJBWhZFGkE+cL2Nf
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
explorer.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2576 4424 explorer.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 opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 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\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Modifies registry class 1 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4424 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
EXCEL.EXEpid process 4424 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
EXCEL.EXEpid process 4424 EXCEL.EXE 4424 EXCEL.EXE 4424 EXCEL.EXE 4424 EXCEL.EXE 4424 EXCEL.EXE 4424 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEexplorer.exedescription pid process target process PID 4424 wrote to memory of 2576 4424 EXCEL.EXE explorer.exe PID 4424 wrote to memory of 2576 4424 EXCEL.EXE explorer.exe PID 1492 wrote to memory of 3176 1492 explorer.exe WScript.exe PID 1492 wrote to memory of 3176 1492 explorer.exe WScript.exe
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\94c4e47f8d07964aa50f0247b42d01681613f11d388c030c6835025e35b23340.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4424 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\KLi.vbs2⤵
- Process spawned unexpected child process
PID:2576
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\KLi.vbs"2⤵PID:3176
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
591B
MD584cf91be20b674976ab80f4373b052eb
SHA172567e3f1d76d88c3c06b4499618497fc66cc6f2
SHA256f84804510e754a81b90a447569b2f78c8869658395afad3b8089bdcb4049561c
SHA5128597c90704438723c87326c2637592e93e66c461bd23d20c05431f6941f5ddb24cc88a25d46a2f2e5f05efe74d2e63910843abefdf2533aed6182ce7eda7f8f9