Analysis
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max time kernel
83s -
max time network
135s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:28
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-458185013.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-458185013.xls
Resource
win10
General
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Target
doc_pack-458185013.xls
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Size
62KB
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MD5
337c1b1367721c51ffc08e0fba3a4152
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SHA1
0781910fb73dd009bdd241251b9cf2fbe63606f2
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SHA256
05ff5b63645eb887f5ca3cb9f47cb5ac823daef93ac6068fb2509536d96f240b
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SHA512
b47af70a7d20b9a7baf4742ba0b937516b01f8fb61e8ee07373d9e5ff597ba5f79099a3845ff393a100c08f052f4eba055634ff762d85110745d78d6cf0c9c08
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 2204 3828 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 3828 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3828 EXCEL.EXE 3828 EXCEL.EXE 2228 dwwin.exe 2228 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3828 wrote to memory of 2204 3828 EXCEL.EXE 76 PID 3828 wrote to memory of 2204 3828 EXCEL.EXE 76 PID 2204 wrote to memory of 2228 2204 DW20.EXE 77 PID 2204 wrote to memory of 2228 2204 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-458185013.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:3828 -
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 44202⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44203⤵
- Suspicious behavior: EnumeratesProcesses
PID:2228
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