Analysis
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max time kernel
35s -
max time network
41s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
23-07-2024 22:16
Behavioral task
behavioral1
Sample
af331a8b505123c53688efff14d34e0a7e415e2bb4baa4a9986b0e449f42002c.xls
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
af331a8b505123c53688efff14d34e0a7e415e2bb4baa4a9986b0e449f42002c.xls
Resource
win10v2004-20240709-en
General
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Target
af331a8b505123c53688efff14d34e0a7e415e2bb4baa4a9986b0e449f42002c.xls
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Size
41KB
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MD5
42f137ff3a31f8e715e92b409761c1ac
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SHA1
04a46320395dbb8c8887d063c392f1aeb7a9c779
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SHA256
af331a8b505123c53688efff14d34e0a7e415e2bb4baa4a9986b0e449f42002c
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SHA512
950d36414c6a1b7c7d613530e526db77ae9bd721ab3c5ed20e8355fac185fc035f7c423707bcbf20130af172d65e393bcd178799b279e05463e49128a3cf7cde
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SSDEEP
768:ctvo+ezZk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJfqOE0d99azC59qgr:MCk3hbdlylKsgqopeJBWhZFGkE+cL2Nm
Malware Config
Signatures
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Process spawned suspicious child process 1 IoCs
This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1584 4048 DW20.EXE 83 -
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 4048 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4048 EXCEL.EXE 4048 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4048 wrote to memory of 1584 4048 EXCEL.EXE 85 PID 4048 wrote to memory of 1584 4048 EXCEL.EXE 85 PID 1584 wrote to memory of 4652 1584 DW20.EXE 86 PID 1584 wrote to memory of 4652 1584 DW20.EXE 86
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\af331a8b505123c53688efff14d34e0a7e415e2bb4baa4a9986b0e449f42002c.xls"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4048 -
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 48522⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1584 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 48523⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:4652
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