Analysis
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max time kernel
73s -
max time network
139s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 22:22
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-35333566.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-35333566.xls
Resource
win10v200722
General
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Target
doc_pack-35333566.xls
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Size
62KB
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MD5
9478adb6e9c1fc5e581101a95b2956db
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SHA1
8dcfd1465cddc86491a2e1ba39749243777b1bc4
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SHA256
0ff1d79ff46646e0a968a67855da31c9b00d922a929ae7894caa6ccbd13c559f
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SHA512
73c9fe8057e488bca07e12c9d306ffc2636608930cd1683e9df968f480e0613713a292a11df17db41eb52c72926b9723405d070d8efa4bf9c6ad244a8ad1c7c3
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 924 4040 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4040 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4040 EXCEL.EXE 4040 EXCEL.EXE 2544 dwwin.exe 2544 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4040 EXCEL.EXE 4040 EXCEL.EXE 4040 EXCEL.EXE 4040 EXCEL.EXE 4040 EXCEL.EXE 4040 EXCEL.EXE 4040 EXCEL.EXE 4040 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4040 wrote to memory of 924 4040 EXCEL.EXE 79 PID 4040 wrote to memory of 924 4040 EXCEL.EXE 79 PID 924 wrote to memory of 2544 924 DW20.EXE 80 PID 924 wrote to memory of 2544 924 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\doc_pack-35333566.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:4040 -
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 46082⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:924 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46083⤵
- Suspicious behavior: EnumeratesProcesses
PID:2544
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