Analysis
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max time kernel
71s -
max time network
136s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1428003959.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1428003959.xls
Resource
win10v200722
General
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Target
document-1428003959.xls
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Size
426KB
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MD5
161e7e3d6fd907d6403c65ee78db28c9
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SHA1
8edf3c0ae44776a1e922508bfcc14013dcd724ac
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SHA256
ad641470dee012ad86a90a53e525f17d03b9fa274794b46c100385de1b2e757a
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SHA512
7d90128f0a6c0be2e1fbcf602c234cc2618f896c93e134992cc9636303b4d34c46aa98650f08e838ba5aca059c16a528f71f8218a724603dc6342010ff336168
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 3100 1052 DW20.EXE 66 -
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\~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 EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process 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 EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1052 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1052 EXCEL.EXE 1052 EXCEL.EXE 948 dwwin.exe 948 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1052 wrote to memory of 3100 1052 EXCEL.EXE 76 PID 1052 wrote to memory of 3100 1052 EXCEL.EXE 76 PID 3100 wrote to memory of 948 3100 DW20.EXE 77 PID 3100 wrote to memory of 948 3100 DW20.EXE 77
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\document-1428003959.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:1052 -
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 46642⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3100 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46643⤵
- Suspicious behavior: EnumeratesProcesses
PID:948
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