Analysis
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max time kernel
144s -
max time network
151s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:28
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-411515421.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-411515421.xls
Resource
win10
General
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Target
doc_pack-411515421.xls
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Size
62KB
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MD5
b4bf226185d4c1b73439c21043255c04
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SHA1
aa4c952bec4e76da83d2e929748b63e97d6cc68d
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SHA256
a2ea7b06efe1a92fd89ae2aa7c4fa80f1ec5d2047d399695cab376ab8ef033d6
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SHA512
edfd7c83abcb93ee72f3c2756d0111b9bde2cca37a7539f2ffa168b47ae92dc6d93a0c375658fa14bd27fcdfac80ea843159c8090098b4f5c2eeb8ab9d506fdf
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 1992 3832 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 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 -
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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3832 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3832 EXCEL.EXE 3832 EXCEL.EXE 2052 dwwin.exe 2052 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3832 wrote to memory of 1992 3832 EXCEL.EXE 76 PID 3832 wrote to memory of 1992 3832 EXCEL.EXE 76 PID 1992 wrote to memory of 2052 1992 DW20.EXE 77 PID 1992 wrote to memory of 2052 1992 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\doc_pack-411515421.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:3832 -
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 44682⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44683⤵
- Suspicious behavior: EnumeratesProcesses
PID:2052
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