Analysis
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max time kernel
86s -
max time network
154s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-58275658.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-58275658.xls
Resource
win10v200722
General
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Target
doc_pack-58275658.xls
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Size
62KB
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MD5
ef1c44facde23534d70dbf54e89ffff6
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SHA1
2e9e5d8ca5a9acef45085496038dba1b8e476b25
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SHA256
f7373ec37041061774ee2c2359382c27f9f0266b381030755b6ab416b891d222
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SHA512
b5f72591e74e497bac0e34f754afafdb08dd17468fd021031111d85323f6fcd1b5a7b3f960f0bc63dec22f7e75f5bfa03d8957a3842f38a7c7dfeafbd1f7377a
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 1440 2584 DW20.EXE 65 -
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 2584 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2584 EXCEL.EXE 2584 EXCEL.EXE 1944 dwwin.exe 1944 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2584 wrote to memory of 1440 2584 EXCEL.EXE 76 PID 2584 wrote to memory of 1440 2584 EXCEL.EXE 76 PID 1440 wrote to memory of 1944 1440 DW20.EXE 77 PID 1440 wrote to memory of 1944 1440 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-58275658.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:2584 -
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 47082⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1440 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47083⤵
- Suspicious behavior: EnumeratesProcesses
PID:1944
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