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Analysis
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max time kernel
177s -
max time network
184s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 11:14
Behavioral task
behavioral1
Sample
31f13bcedfd5e28b3fd679c47223c2d53f7aaf7c377e90d86e267cc1c3c8a66b.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
31f13bcedfd5e28b3fd679c47223c2d53f7aaf7c377e90d86e267cc1c3c8a66b.xls
Resource
win10v2004-20220812-en
General
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Target
31f13bcedfd5e28b3fd679c47223c2d53f7aaf7c377e90d86e267cc1c3c8a66b.xls
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Size
96KB
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MD5
00142a44ffac759b5d3564e284b13325
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SHA1
da2f651e19088d64c4750f5a808e7f0a8e8c5bc2
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SHA256
31f13bcedfd5e28b3fd679c47223c2d53f7aaf7c377e90d86e267cc1c3c8a66b
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SHA512
20761f2bd11628da72c02b736961104c3ee86ffdf9e52fefc4555583b680ee2a4491693c3376a41cf48b04a8dc3a738ef0629ea5040dd7943a0d9b5bc3874a81
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SSDEEP
1536:ZQQQQcSxoPVy4tzw2pWVbrzQ7ITkoYlFA23k088ScJtXwPhfw:wDWVbrzQ7ITkRNjhJtXwJfw
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 2848 2268 cmd.exe 78 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2492 2268 cmd.exe 78 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3720 2268 cmd.exe 78 -
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 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 -
NTFS ADS 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\0DD75E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2268 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2268 wrote to memory of 2848 2268 EXCEL.EXE 83 PID 2268 wrote to memory of 2848 2268 EXCEL.EXE 83 PID 2268 wrote to memory of 2492 2268 EXCEL.EXE 85 PID 2268 wrote to memory of 2492 2268 EXCEL.EXE 85 PID 2268 wrote to memory of 3720 2268 EXCEL.EXE 86 PID 2268 wrote to memory of 3720 2268 EXCEL.EXE 86 PID 2848 wrote to memory of 3488 2848 cmd.exe 89 PID 2848 wrote to memory of 3488 2848 cmd.exe 89 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 3488 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\31f13bcedfd5e28b3fd679c47223c2d53f7aaf7c377e90d86e267cc1c3c8a66b.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:2268 -
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:2848 -
C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
PID:3488
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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:2492
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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:3720
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