Analysis
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max time kernel
83s -
max time network
150s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 22:22
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-364033831.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-364033831.xls
Resource
win10v200722
General
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Target
doc_pack-364033831.xls
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Size
62KB
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MD5
51574ca3b3cd48ae9e46dc87dc62a246
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SHA1
d51d96e82a321358458d052436cecfc2b236f22d
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SHA256
dc1e9ab5d55c1489a69db8607f2643eb871d5ea2781f8a9079a88396d0a5a345
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SHA512
83986521eeac0085a88570eabf0dffd4c50a850c3633da57b7e3e9394c993861dcc821f28ab9edbefcefad1730ba99b998c6feb103de6c7d2c99b961a4bd91af
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 3612 3940 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 3940 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3940 EXCEL.EXE 3940 EXCEL.EXE 3568 dwwin.exe 3568 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3940 wrote to memory of 3612 3940 EXCEL.EXE 80 PID 3940 wrote to memory of 3612 3940 EXCEL.EXE 80 PID 3612 wrote to memory of 3568 3612 DW20.EXE 81 PID 3612 wrote to memory of 3568 3612 DW20.EXE 81
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-364033831.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:3940 -
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 46842⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3612 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46843⤵
- Suspicious behavior: EnumeratesProcesses
PID:3568
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