Analysis
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max time kernel
138s -
max time network
135s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
08-07-2020 13:47
Static task
static1
Behavioral task
behavioral1
Sample
e24db78c4d4fda4b221a7d553c6f20e6.xls
Resource
win7
Behavioral task
behavioral2
Sample
e24db78c4d4fda4b221a7d553c6f20e6.xls
Resource
win10v200430
General
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Target
e24db78c4d4fda4b221a7d553c6f20e6.xls
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Size
697KB
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MD5
e24db78c4d4fda4b221a7d553c6f20e6
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SHA1
e41f581df80cf5ccdcd0c7019d0d03ab6e5c6bb3
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SHA256
94de9339ec227a42e376a827db37564436f084e8efcca15530242d88c58e0c27
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SHA512
1c705357db51516c28392a23c22e97cc90f0ad1511601218632069422e20e55cb5c90bec20e2bf5326978c3cc8769aabc935e5cdcbf201ed66207b18856df89a
Malware Config
Signatures
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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 use of SetWindowsHookEx 8 IoCs
pid Process 3656 EXCEL.EXE 3656 EXCEL.EXE 3656 EXCEL.EXE 3656 EXCEL.EXE 3656 EXCEL.EXE 3656 EXCEL.EXE 3656 EXCEL.EXE 3656 EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3656 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3656 EXCEL.EXE 3656 EXCEL.EXE 3948 dwwin.exe 3948 dwwin.exe -
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 3668 3656 DW20.EXE 65 -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3656 wrote to memory of 3668 3656 EXCEL.EXE 72 PID 3656 wrote to memory of 3668 3656 EXCEL.EXE 72 PID 3668 wrote to memory of 3948 3668 DW20.EXE 73 PID 3668 wrote to memory of 3948 3668 DW20.EXE 73 -
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
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\e24db78c4d4fda4b221a7d553c6f20e6.xls"1⤵
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
PID:3656 -
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 31442⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3668 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 31443⤵
- Suspicious behavior: EnumeratesProcesses
PID:3948
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