Analysis
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max time kernel
81s -
max time network
148s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 23:12
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-668001904.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-668001904.xls
Resource
win10v200722
General
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Target
doc_pack-668001904.xls
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Size
62KB
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MD5
4923e934153501586e0dd0b4890f3070
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SHA1
9ad428abd81c61d17ad0a6a8aa882ecab35fb3c6
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SHA256
922a59dcf3df8e8dcfe014bc27103323da69a09990ef0ed59a805eeeda115e33
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SHA512
ef28712a76a5b94a6364b06677361c839b4d967acacfcfe9869acfdd22032bdbbe8402cafbdfd5fdcd3c2647ce6819d6fda5c040b56a6e05863fab3af5398bad
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 4028 3876 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 3876 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3876 EXCEL.EXE 3876 EXCEL.EXE 1504 dwwin.exe 1504 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3876 wrote to memory of 4028 3876 EXCEL.EXE 79 PID 3876 wrote to memory of 4028 3876 EXCEL.EXE 79 PID 4028 wrote to memory of 1504 4028 DW20.EXE 80 PID 4028 wrote to memory of 1504 4028 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-668001904.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:3876 -
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 46722⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:4028 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46723⤵
- Suspicious behavior: EnumeratesProcesses
PID:1504
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