Analysis
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max time kernel
9s -
max time network
129s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:08
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-620434390.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-620434390.xls
Resource
win10
General
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Target
doc_pack-620434390.xls
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Size
62KB
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MD5
1fdc1aee796bd61ac7c2c19c7b6b2a53
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SHA1
252c90907f20524d0882360bd74d26f35d5ea5f0
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SHA256
39fa226a4b6a10b95062b7c355d0c73c7158ce491b9b5b08ea245ecec42d9fe0
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SHA512
f13f039596e3bf194fa199b13b9cac88e27628bbb29acd77e36729eb9918495fff4c1894fd2b8c1cc6a9421569018f0176836f84727141c73239676e58c0a039
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 2884 3892 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 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 3892 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3892 EXCEL.EXE 3892 EXCEL.EXE 3012 dwwin.exe 3012 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3892 EXCEL.EXE 3892 EXCEL.EXE 3892 EXCEL.EXE 3892 EXCEL.EXE 3892 EXCEL.EXE 3892 EXCEL.EXE 3892 EXCEL.EXE 3892 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3892 wrote to memory of 2884 3892 EXCEL.EXE 76 PID 3892 wrote to memory of 2884 3892 EXCEL.EXE 76 PID 2884 wrote to memory of 3012 2884 DW20.EXE 77 PID 2884 wrote to memory of 3012 2884 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\doc_pack-620434390.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:3892 -
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 44482⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2884 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44483⤵
- Suspicious behavior: EnumeratesProcesses
PID:3012
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