Analysis
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max time kernel
89s -
max time network
137s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-685221994.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-685221994.xls
Resource
win10
General
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Target
doc_pack-685221994.xls
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Size
62KB
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MD5
1436fb4305ddc8014d0fd39e034c3da4
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SHA1
73b7d2a52c5189529fe6d64cc6216d32a24b70a1
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SHA256
d0f7af0210b2cff2a1947433f3d70283c546f5a4fbe2960ced8a5ca5802e6b5e
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SHA512
30a0a7ec82ae2a9c5289e8a0cc3ffe450bf8258f9d0179a04d0bdd5d6ea1baef753e57b369f5c880b05361e00566aedb499c6b46e682c6d8b4bc246d067bc62f
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 3156 744 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 744 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 744 EXCEL.EXE 744 EXCEL.EXE 204 dwwin.exe 204 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 744 wrote to memory of 3156 744 EXCEL.EXE 76 PID 744 wrote to memory of 3156 744 EXCEL.EXE 76 PID 3156 wrote to memory of 204 3156 DW20.EXE 77 PID 3156 wrote to memory of 204 3156 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-685221994.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:744 -
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 44482⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3156 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44483⤵
- Suspicious behavior: EnumeratesProcesses
PID:204
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