Analysis
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max time kernel
10s -
max time network
135s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:22
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-368437814.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-368437814.xls
Resource
win10
General
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Target
doc_pack-368437814.xls
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Size
62KB
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MD5
87d5ec011f5b70ac30d82d0ee75c3e67
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SHA1
fadf2e1b8a9fc3842ddfc2a7c972391ef20b36b7
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SHA256
369759ff19e5642af27a0aafebb23847fef54ab4211bf3cfb6f02dab83a1e302
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SHA512
70fe41c5f0a773026835a086bf359c9d7837d5559d20fca2c3f638fff750afb03aeb0b94a1897acee8f1c175caee1de87d1e3e46f88eb083a023c0dffbce41fb
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 2140 3104 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\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 3104 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3104 EXCEL.EXE 3104 EXCEL.EXE 2164 dwwin.exe 2164 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3104 wrote to memory of 2140 3104 EXCEL.EXE 77 PID 3104 wrote to memory of 2140 3104 EXCEL.EXE 77 PID 2140 wrote to memory of 2164 2140 DW20.EXE 78 PID 2140 wrote to memory of 2164 2140 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-368437814.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:3104 -
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 44162⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44163⤵
- Suspicious behavior: EnumeratesProcesses
PID:2164
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