Analysis
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max time kernel
50s -
max time network
46s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
26-06-2024 21:01
Behavioral task
behavioral1
Sample
427513c6e926fc67016a526c42facadfa808daf63d5c7cff7d3f9db34f03c0a0.xls
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
427513c6e926fc67016a526c42facadfa808daf63d5c7cff7d3f9db34f03c0a0.xls
Resource
win10v2004-20240226-en
General
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Target
427513c6e926fc67016a526c42facadfa808daf63d5c7cff7d3f9db34f03c0a0.xls
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Size
715KB
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MD5
e7236f3218970ac3539474a3be8107c0
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SHA1
0bb76c01e0f1cb2cf41e9d41bd2610224338367d
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SHA256
427513c6e926fc67016a526c42facadfa808daf63d5c7cff7d3f9db34f03c0a0
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SHA512
6634d0a50385d54d2b5565fe040fad7827b4066dd7f865993f904f7c12040e933e0ccc8d0c25bf3feac0565e62089ea1b8cd3abd7ced4fd285433d8b66c52f74
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SSDEEP
12288:3RsUpcHnXXzNkRKFfsAqdlVDczXZejbeAQjSY4VTZoLtq57kWjuNMfK:3RsSc3DGUFfpqdUzXM/GjS/VTZoIP
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.
Processes:
DW20.EXEdescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 924 4752 DW20.EXE EXCEL.EXE -
Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdwwin.exedescription 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 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 5 IoCs
Processes:
EXCEL.EXEdwwin.exedescription 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 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
Processes:
EXCEL.EXEpid process 4752 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
EXCEL.EXEpid process 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 4752 EXCEL.EXE 4752 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE 4752 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEDW20.EXEdescription pid process target process PID 4752 wrote to memory of 924 4752 EXCEL.EXE DW20.EXE PID 4752 wrote to memory of 924 4752 EXCEL.EXE DW20.EXE PID 924 wrote to memory of 5016 924 DW20.EXE dwwin.exe PID 924 wrote to memory of 5016 924 DW20.EXE dwwin.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\427513c6e926fc67016a526c42facadfa808daf63d5c7cff7d3f9db34f03c0a0.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4752 -
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:924 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 48523⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:5016
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3804 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:81⤵PID:2648