Analysis
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max time kernel
141s -
max time network
145s -
platform
windows10_x64 -
resource
win10 -
submitted
19/10/2020, 22:58
Static task
static1
Behavioral task
behavioral1
Sample
document-1081293814.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1081293814.xls
Resource
win10
General
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Target
document-1081293814.xls
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Size
426KB
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MD5
816d6bd6e0ad6c7e32cc685fff61f877
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SHA1
7fb745d308d54bfd8e2eec54d22dbdb2166b56f4
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SHA256
ae3f6a5bc2cfe7e3f605c98471ec20661a3b73cec1a85e152478ac5983cbc662
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SHA512
16a76ae22ef985d8642c0a41d9d6ad2eb05a6ff7e50949e75ce15658c82b1cc717ee37c4f95d1880edb49e05977c59cc4275ab35a7e78723aca0d6adc64f66de
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 3944 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 2332 dwwin.exe 2332 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 3944 3828 EXCEL.EXE 75 PID 3828 wrote to memory of 3944 3828 EXCEL.EXE 75 PID 3944 wrote to memory of 2332 3944 DW20.EXE 76 PID 3944 wrote to memory of 2332 3944 DW20.EXE 76
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\document-1081293814.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 44762⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3944 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44763⤵
- Suspicious behavior: EnumeratesProcesses
PID:2332
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