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Analysis
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max time kernel
141s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
14/02/2023, 19:30
Behavioral task
behavioral1
Sample
7600e46b1ad89168e4315759068fc55a.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
7600e46b1ad89168e4315759068fc55a.xls
Resource
win10v2004-20221111-en
General
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Target
7600e46b1ad89168e4315759068fc55a.xls
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Size
173KB
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MD5
7600e46b1ad89168e4315759068fc55a
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SHA1
3967e02c4126829e6a276918a4ce4af2b121da05
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SHA256
efb42b166ff6fa0da650c32c247047daa397a08cebb9cae0c7034a4a3e1b1c6f
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SHA512
563cf02c05e055a3c4e0fdd3c9c5bed3ac6554fbcb87a1c9e732d06dd2afaab3db001f6c5a2dd53cdc378880ac480a9d788f3b59bf0f4507366c0f2a5c638e8f
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SSDEEP
3072:8+IH1OxQKxy5gfaf8kDfsQmN3psWUZZR/Qse7sUguglgAQ3NRSw/JtXwkDKSZ:8+IH1OxQKxy5gfaf8kDfsQmN3psWUZZY
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.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4588 4832 cmd.exe 79 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3916 4832 cmd.exe 79 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3564 4832 cmd.exe 79 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\6AE65E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4832 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 16 IoCs
pid Process 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4832 wrote to memory of 3404 4832 EXCEL.EXE 82 PID 4832 wrote to memory of 3404 4832 EXCEL.EXE 82 PID 4832 wrote to memory of 4588 4832 EXCEL.EXE 84 PID 4832 wrote to memory of 4588 4832 EXCEL.EXE 84 PID 4832 wrote to memory of 3916 4832 EXCEL.EXE 86 PID 4832 wrote to memory of 3916 4832 EXCEL.EXE 86 PID 4832 wrote to memory of 3564 4832 EXCEL.EXE 88 PID 4832 wrote to memory of 3564 4832 EXCEL.EXE 88 PID 4588 wrote to memory of 3732 4588 cmd.exe 90 PID 4588 wrote to memory of 3732 4588 cmd.exe 90 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 3732 attrib.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\7600e46b1ad89168e4315759068fc55a.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
PID:4832 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:3404
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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:3732
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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
PID:3916
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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
PID:3564
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:2432