Analysis
- max time kernel
139s - max time network
142s - platform
windows10_x64 - resource
win10v200430 - submitted
10/07/2020, 18:08
Static task
static1
Behavioral task
behavioral1
Sample
file_124672.xls
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
file_124672.xls
Resource
win10v200430
0 signatures
0 seconds
General
- Target file_124672.xls
- Size 295KB
- Sample200710-3jrrtggf9e
- SHA256 3f56eaa38eace04eaaee759ab6d855ef9555f66d472106099a42ab31c3f746ec
- MD5 393ded3846127150dc6b7dbd2dc32082
- SHA1 a2b57df48dd77bbd46718ad9d4bc82fc710984aa
- SHA512 e014c290ea859e204f877e67e0bc59e0f065b7515b4655cb3b9708095467cfb14a95dcc36872acf09bf92c8d21f5874b842b10ec4986dac8ca4ba1db3ebb3012
- MD5 SHA1 SHA512
Score
6/10
Malware Config
Signatures
- Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1616 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1616 EXCEL.EXE 1616 EXCEL.EXE 4072 dwwin.exe 4072 dwwin.exe - 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 3728 1616 DW20.EXE 67 - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1616 wrote to memory of 3728 1616 EXCEL.EXE 71 PID 1616 wrote to memory of 3728 1616 EXCEL.EXE 71 PID 3728 wrote to memory of 4072 3728 DW20.EXE 72 PID 3728 wrote to memory of 4072 3728 DW20.EXE 72 - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description 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
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\file_124672.xls"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:1616 -
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 45482⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3728 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 45483⤵
- Suspicious behavior: EnumeratesProcesses
PID:4072
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