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Analysis
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max time kernel
143s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
01/01/2024, 05:18
Static task
static1
Behavioral task
behavioral1
Sample
3bfc534f688903566b0c2976366df8d8.xlsm
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
3bfc534f688903566b0c2976366df8d8.xlsm
Resource
win10v2004-20231215-en
General
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Target
3bfc534f688903566b0c2976366df8d8.xlsm
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Size
41KB
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MD5
3bfc534f688903566b0c2976366df8d8
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SHA1
c2364ad7f1edfc290fdd7789f97fc9304ceb4ec6
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SHA256
bfd1bd3025ad4e0cb9a3aca87fd8847095baf77ebaf77b654fb9a5a34652e2e4
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SHA512
82e84058f0bfe772780500bc2f8eac177ca6b2c15dbe21d294f7959c010512c422683e637fd6a9b65d239260473f1b86f09c00755ab7c29bd976fe7ecdc4dce5
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SSDEEP
768:Xh6Kbfx+rvrZN0DGCfkyX3eks4pSGn0Qic3qwiq0jK0Ph6g0:R6ISdGzfPeUv02V10ex
Malware Config
Signatures
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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 dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dwwin.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dwwin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 392 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE 392 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 392 wrote to memory of 1168 392 EXCEL.EXE 17 PID 392 wrote to memory of 1168 392 EXCEL.EXE 17 PID 1168 wrote to memory of 2476 1168 DW20.EXE 19 PID 1168 wrote to memory of 2476 1168 DW20.EXE 19
Processes
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C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 41801⤵
- Suspicious use of WriteProcessMemory
PID:1168 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 41802⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:2476
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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\3bfc534f688903566b0c2976366df8d8.xlsm"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:392