Analysis
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max time kernel
10s -
max time network
131s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:28
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-419355796.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-419355796.xls
Resource
win10
General
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Target
doc_pack-419355796.xls
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Size
62KB
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MD5
f859639704fa67cfd6533accbae4cff6
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SHA1
1546dfe7efa2b59f67963aabe137e2411b1bd26d
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SHA256
362122f92e01612c3cd254844195bbcb98ad3e3c8c9e591eabab17c1a66795b4
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SHA512
a985ec6aa671d8f49348a7f269fef8e62090ce4c16ce7186ac9f10247ac434178026ecf234cf69fcb83502ce55ad6e7add1e50e306b3ed7f77c2a9239c99ec57
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 1800 3788 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 3788 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3788 EXCEL.EXE 3788 EXCEL.EXE 2216 dwwin.exe 2216 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3788 wrote to memory of 1800 3788 EXCEL.EXE 76 PID 3788 wrote to memory of 1800 3788 EXCEL.EXE 76 PID 1800 wrote to memory of 2216 1800 DW20.EXE 78 PID 1800 wrote to memory of 2216 1800 DW20.EXE 78
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-419355796.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:3788 -
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 42402⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1800 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 42403⤵
- Suspicious behavior: EnumeratesProcesses
PID:2216
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