Analysis
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max time kernel
9s -
max time network
130s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:09
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-571152597.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-571152597.xls
Resource
win10
General
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Target
doc_pack-571152597.xls
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Size
62KB
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MD5
8852a9635a9c59b216d58a6e6638d79c
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SHA1
9d0f3163177a12148de0c8af89d2a514a2f099c6
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SHA256
e3202671872526693a74d33f9ca2525aed52eaf05617c4984800a26310f3e9ca
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SHA512
54e71531120fd1642001c4f955146ee302feda0c87c2b9eaa1a3f5e96887510a975c5a5dc16d29bb3d35b7ef0aa0ce2d4cc68daa65fa81a28f09e0560fba23a6
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 2156 3828 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 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 3828 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3828 EXCEL.EXE 3828 EXCEL.EXE 2248 dwwin.exe 2248 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3828 wrote to memory of 2156 3828 EXCEL.EXE 77 PID 3828 wrote to memory of 2156 3828 EXCEL.EXE 77 PID 2156 wrote to memory of 2248 2156 DW20.EXE 78 PID 2156 wrote to memory of 2248 2156 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\doc_pack-571152597.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:3828 -
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 44922⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2156 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44923⤵
- Suspicious behavior: EnumeratesProcesses
PID:2248
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