Analysis
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max time kernel
8s -
max time network
133s -
platform
windows10_x64 -
resource
win10 -
submitted
19/10/2020, 22:57
Static task
static1
Behavioral task
behavioral1
Sample
document-1192911160.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1192911160.xls
Resource
win10
General
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Target
document-1192911160.xls
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Size
426KB
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MD5
f892cf34d82ed8744a1004d169637d88
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SHA1
a7f203c5c766f3f42451bfbc0b9fd1ed6b421bc2
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SHA256
dcfe2985f5ca62e39c6f23848af163b75f7241acd1957571d763de21e5e83b56
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SHA512
a419ec7321f384b60bf77d74084fa029b9e336bc92013d0552d6b320a7ca0dfc467ec5e4d6e7faf399bea80d4efbcd429dc078334076ffb3400bd2d2e0272998
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 200 4056 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 4056 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4056 EXCEL.EXE 4056 EXCEL.EXE 408 dwwin.exe 408 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4056 EXCEL.EXE 4056 EXCEL.EXE 4056 EXCEL.EXE 4056 EXCEL.EXE 4056 EXCEL.EXE 4056 EXCEL.EXE 4056 EXCEL.EXE 4056 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4056 wrote to memory of 200 4056 EXCEL.EXE 77 PID 4056 wrote to memory of 200 4056 EXCEL.EXE 77 PID 200 wrote to memory of 408 200 DW20.EXE 78 PID 200 wrote to memory of 408 200 DW20.EXE 78
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-1192911160.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:4056 -
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:200 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44203⤵
- Suspicious behavior: EnumeratesProcesses
PID:408
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