Analysis
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max time kernel
91s -
max time network
156s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1284324479.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1284324479.xls
Resource
win10v200722
General
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Target
document-1284324479.xls
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Size
426KB
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MD5
1c185d97263bbf36d8ff65d2c19a22cb
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SHA1
9aebd0e22f2d8fd72687770df0f5c4aed72cd783
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SHA256
0ab76ae8042616c9c28732759becd0769b4990aa70bac761c3e18df5d9d97330
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SHA512
86bae00c185717deaf80a41911743b079bc8f4b044f17b6931431da608a219de522a56166fc21df3f2b00cd051cacf3f3b67a0edffb25874a60495be0bf92473
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 1260 3888 DW20.EXE 65 -
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 3888 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3888 EXCEL.EXE 3888 EXCEL.EXE 4020 dwwin.exe 4020 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3888 EXCEL.EXE 3888 EXCEL.EXE 3888 EXCEL.EXE 3888 EXCEL.EXE 3888 EXCEL.EXE 3888 EXCEL.EXE 3888 EXCEL.EXE 3888 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3888 wrote to memory of 1260 3888 EXCEL.EXE 79 PID 3888 wrote to memory of 1260 3888 EXCEL.EXE 79 PID 1260 wrote to memory of 4020 1260 DW20.EXE 80 PID 1260 wrote to memory of 4020 1260 DW20.EXE 80
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-1284324479.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:3888 -
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 47242⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47243⤵
- Suspicious behavior: EnumeratesProcesses
PID:4020
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