Analysis
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max time kernel
59s -
max time network
35s -
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 22:07
Behavioral task
behavioral1
Sample
97032af50323f120adb5221e3deff2ffc4d2bb50b56130f6e47c4d96c0fb5588.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
97032af50323f120adb5221e3deff2ffc4d2bb50b56130f6e47c4d96c0fb5588.xls
Resource
win10v2004-20240802-en
General
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Target
97032af50323f120adb5221e3deff2ffc4d2bb50b56130f6e47c4d96c0fb5588.xls
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Size
36KB
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MD5
7ddd4b98c7a9e4d73caa88f66357ffd6
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SHA1
2bcd178cba039ec9826db2270dc504f39d53f15e
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SHA256
97032af50323f120adb5221e3deff2ffc4d2bb50b56130f6e47c4d96c0fb5588
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SHA512
9d3a5d05937eb0ca578d97f0a134b6dd3e7b5befa3c5c1fc2cf9ea22b4f556fa775e6af74468b387a706ff49dc46eb55e22b2a7313c1c726b567c19547de9670
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SSDEEP
768:8PqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJlcK0hUoYf+ooT:ook3hbdlylKsgqopeJBWhZFGkE+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 3800 4596 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\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 -
Modifies registry class 1 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4596 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
EXCEL.EXEpid process 4596 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
EXCEL.EXEpid process 4596 EXCEL.EXE 4596 EXCEL.EXE 4596 EXCEL.EXE 4596 EXCEL.EXE 4596 EXCEL.EXE 4596 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEexplorer.exedescription pid process target process PID 4596 wrote to memory of 3800 4596 EXCEL.EXE explorer.exe PID 4596 wrote to memory of 3800 4596 EXCEL.EXE explorer.exe PID 4828 wrote to memory of 4968 4828 explorer.exe WScript.exe PID 4828 wrote to memory of 4968 4828 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\97032af50323f120adb5221e3deff2ffc4d2bb50b56130f6e47c4d96c0fb5588.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:4596 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\NB127.vbs2⤵
- Process spawned unexpected child process
PID:3800
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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:4828 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\NB127.vbs"2⤵PID:4968
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
597B
MD533808777eb2b9ed582ba7fdc79781e9c
SHA1bdb5f3b64701de05ef0abfdf4632369d7ab81df4
SHA25645d6efc5d51f8e67751f8e6c03eddb3dd6e1685691977d136d484fa146f679d0
SHA512e8bd296488e5c2a3a2eccde2cdb71fea1da49aae5b679a992d70b69c9904cf5b2500408f9ef4bddc938a47cfac53a207b9a7248776d93882a04abd30e210940f