Analysis
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max time kernel
78s -
max time network
150s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 22:25
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-371097622.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-371097622.xls
Resource
win10v200722
General
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Target
doc_pack-371097622.xls
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Size
62KB
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MD5
55236f4fbc671b11191b74d1f2237feb
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SHA1
b14df0b75837d61546995510b89dff56c0be66d7
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SHA256
8cb2ec3cdfbc10c23f2151b30c245c9fc092ea1bd2c735066259e88f93483647
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SHA512
9279b258a9e86e500de884913b26fa3542b09740233db40c09a6045a639c6200284f1586fd4508c9ccbc9f9ff9c0670f282a373aa6a1dbe02b2f6291fc96feff
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 1756 584 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 584 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 584 EXCEL.EXE 584 EXCEL.EXE 4008 dwwin.exe 4008 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 584 EXCEL.EXE 584 EXCEL.EXE 584 EXCEL.EXE 584 EXCEL.EXE 584 EXCEL.EXE 584 EXCEL.EXE 584 EXCEL.EXE 584 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 584 wrote to memory of 1756 584 EXCEL.EXE 80 PID 584 wrote to memory of 1756 584 EXCEL.EXE 80 PID 1756 wrote to memory of 4008 1756 DW20.EXE 81 PID 1756 wrote to memory of 4008 1756 DW20.EXE 81
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-371097622.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:584 -
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 47442⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47443⤵
- Suspicious behavior: EnumeratesProcesses
PID:4008
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