Analysis
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max time kernel
139s -
max time network
144s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:28
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-44522786.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-44522786.xls
Resource
win10
General
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Target
doc_pack-44522786.xls
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Size
62KB
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MD5
6f7ab55d7caabda3b0e0e386d83d8441
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SHA1
9733c63c1de0632ccc6a8a4bb085a2498fc6808a
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SHA256
c3cc821f31c3e7ba3b5e935b1b6f511b5790affbcd895983f6eaaa31f228a29b
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SHA512
db252e2f501890d6bcb3202d0fb49f6cff5f67374bcbca4d02ebbb667a3ccd2ddc1ea5a49701adf344efc7f71a69b79547b38f57a2b896796f443083ce9f8a16
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 1976 3104 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 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 3104 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3104 EXCEL.EXE 3104 EXCEL.EXE 2132 dwwin.exe 2132 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3104 wrote to memory of 1976 3104 EXCEL.EXE 76 PID 3104 wrote to memory of 1976 3104 EXCEL.EXE 76 PID 1976 wrote to memory of 2132 1976 DW20.EXE 77 PID 1976 wrote to memory of 2132 1976 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-44522786.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:3104 -
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 44762⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1976 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44763⤵
- Suspicious behavior: EnumeratesProcesses
PID:2132
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