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Analysis
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max time kernel
103s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
14/02/2023, 19:31
Behavioral task
behavioral1
Sample
064bb054746f0e36d8231a272d70980d.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
064bb054746f0e36d8231a272d70980d.xls
Resource
win10v2004-20220901-en
General
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Target
064bb054746f0e36d8231a272d70980d.xls
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Size
173KB
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MD5
064bb054746f0e36d8231a272d70980d
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SHA1
4a21a7d20ca174a91a1c49d8885f9be0c5d20a4a
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SHA256
4bdee72a162f40422dfce6ac2d01ac25075bf1d0e6f641b27dea6858b092cee9
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SHA512
1d3cf8b37be6f5281e39f2b7ddfee3fe6a48f41d4704c39b1b901ce7d5b8d5573ec16e2f6ebebb78b33267b1d104fa390c527ed22ab6ed483fdfbc88188156a2
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SSDEEP
3072:0+IH1OxQKxy5gfaf8kDfsQmN3psWUZZR/Qse7sUguglgAQ3NRSw/JtXwkDKSZ:0+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 4968 4396 cmd.exe 81 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 372 4396 cmd.exe 81 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5008 4396 cmd.exe 81 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
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\E3275E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4396 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE 4396 EXCEL.EXE -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4396 wrote to memory of 396 4396 EXCEL.EXE 85 PID 4396 wrote to memory of 396 4396 EXCEL.EXE 85 PID 4396 wrote to memory of 4968 4396 EXCEL.EXE 88 PID 4396 wrote to memory of 4968 4396 EXCEL.EXE 88 PID 4396 wrote to memory of 372 4396 EXCEL.EXE 90 PID 4396 wrote to memory of 372 4396 EXCEL.EXE 90 PID 4396 wrote to memory of 5008 4396 EXCEL.EXE 91 PID 4396 wrote to memory of 5008 4396 EXCEL.EXE 91 PID 4968 wrote to memory of 2684 4968 cmd.exe 94 PID 4968 wrote to memory of 2684 4968 cmd.exe 94 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2684 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\064bb054746f0e36d8231a272d70980d.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:4396 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:396
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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:4968 -
C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
PID:2684
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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:372
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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:5008
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:3008