Analysis
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max time kernel
18s -
max time network
144s -
platform
windows10_x64 -
resource
win10 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1309851464.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1309851464.xls
Resource
win10
General
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Target
document-1309851464.xls
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Size
426KB
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MD5
a4a140833005a3215c6742917fe79f4d
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SHA1
4279590720636b170b3f9532cc7926ea4b448c88
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SHA256
77e5e9439b32d80f07da412392e67ba984b065eb15e8809e7bf82a88805b917a
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SHA512
338d51e718e48271819728fc8bea10e2d75c219ee1f80416091df2c5f3ed3af9361bb376bc5b44d5b1ed57d86f79c66a7aa5b7ddecdb5810d7007dcb023310f1
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 3624 3936 DW20.EXE 66 -
Checks processor information in registry 2 TTPs 2 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 -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3936 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3936 EXCEL.EXE 3936 EXCEL.EXE 152 dwwin.exe 152 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3936 wrote to memory of 3624 3936 EXCEL.EXE 76 PID 3936 wrote to memory of 3624 3936 EXCEL.EXE 76 PID 3624 wrote to memory of 152 3624 DW20.EXE 77 PID 3624 wrote to memory of 152 3624 DW20.EXE 77
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-1309851464.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:3936 -
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 45842⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3624 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 45843⤵
- Suspicious behavior: EnumeratesProcesses
PID:152
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