Analysis
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max time kernel
71s -
max time network
141s -
platform
windows10_x64 -
resource
win10 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1314661853.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1314661853.xls
Resource
win10
General
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Target
document-1314661853.xls
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Size
426KB
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MD5
5ba195b4073bf944fb85cb391a914260
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SHA1
2de81f119a13a0477e6bfb7a7a8ca49a965333b2
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SHA256
fd0808039a7dc7ca9dd819e86410de6558e94a8674d0b65779795526ef3d57be
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SHA512
92b6e020baf3081606d2a1f994b7451ce4006e3818bbd770260a25c132c4ede0ad3691e537e7931dd5859f1d72a799dad9c3d05822462dc91eecec2dbb2473d1
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 208 4036 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 4036 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4036 EXCEL.EXE 4036 EXCEL.EXE 4092 dwwin.exe 4092 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4036 EXCEL.EXE 4036 EXCEL.EXE 4036 EXCEL.EXE 4036 EXCEL.EXE 4036 EXCEL.EXE 4036 EXCEL.EXE 4036 EXCEL.EXE 4036 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4036 wrote to memory of 208 4036 EXCEL.EXE 77 PID 4036 wrote to memory of 208 4036 EXCEL.EXE 77 PID 208 wrote to memory of 4092 208 DW20.EXE 78 PID 208 wrote to memory of 4092 208 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-1314661853.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:4036 -
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 46762⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:208 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46763⤵
- Suspicious behavior: EnumeratesProcesses
PID:4092
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