Analysis
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max time kernel
8s -
max time network
134s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:25
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-319655896.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-319655896.xls
Resource
win10
General
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Target
doc_pack-319655896.xls
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Size
62KB
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MD5
3bd11d760c93dc44f4284ddf506ae94d
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SHA1
e01abe94c60b1a57039d5b317caededf4034ec86
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SHA256
74451da5505897ff625d8ff02f4cf2bc777c75859f11ba7039835d40242ee244
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SHA512
dea090c920dcc308f4a98150ec149548103e88ebfe8c013948381860b5a1edc1d663756e34df81925339bf39abae77d648f072621b287ba2b98a8cf1992378fd
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 4036 3896 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3896 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3896 EXCEL.EXE 3896 EXCEL.EXE 204 dwwin.exe 204 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3896 wrote to memory of 4036 3896 EXCEL.EXE 76 PID 3896 wrote to memory of 4036 3896 EXCEL.EXE 76 PID 4036 wrote to memory of 204 4036 DW20.EXE 78 PID 4036 wrote to memory of 204 4036 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-319655896.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:3896 -
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 44402⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:4036 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44403⤵
- Suspicious behavior: EnumeratesProcesses
PID:204
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