Analysis
-
max time kernel
58s -
max time network
61s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
03-07-2024 21:09
Behavioral task
behavioral1
Sample
77eebeb90db500401e300be106ea2f7902fde000233d9604a013c547ae4fb967.xls
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
77eebeb90db500401e300be106ea2f7902fde000233d9604a013c547ae4fb967.xls
Resource
win10v2004-20240611-en
General
-
Target
77eebeb90db500401e300be106ea2f7902fde000233d9604a013c547ae4fb967.xls
-
Size
90KB
-
MD5
4592320e7b383361833c5a7ebb6c314b
-
SHA1
b1b271c2664fd77c770412f23d1dd84d56f48cab
-
SHA256
77eebeb90db500401e300be106ea2f7902fde000233d9604a013c547ae4fb967
-
SHA512
a52fbe7ce4b23db6cb2709d778e92ee5ffd102ea616b80dbd136a99ca42170741b0530e1ef1f34bea8247ff9e9dd03262c9084fd6eb1035cb85fa4bfd6f5dc00
-
SSDEEP
768:plnJFW0FvV5lwCmBtQ+yHrZpto2QLjYp0skfPrZpODQSYMHCU6/X83za86:95wCG69rZplkYmZXrZpc7YE76/Iza86
Malware Config
Signatures
-
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 2428 5056 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 5056 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
EXCEL.EXEpid process 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 9 IoCs
Processes:
EXCEL.EXEpid process 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE 5056 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEDW20.EXEdescription pid process target process PID 5056 wrote to memory of 2428 5056 EXCEL.EXE DW20.EXE PID 5056 wrote to memory of 2428 5056 EXCEL.EXE DW20.EXE PID 2428 wrote to memory of 2520 2428 DW20.EXE dwwin.exe PID 2428 wrote to memory of 2520 2428 DW20.EXE dwwin.exe
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\77eebeb90db500401e300be106ea2f7902fde000233d9604a013c547ae4fb967.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5056 -
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 47522⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2428 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47523⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:2520