Analysis
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max time kernel
105s -
max time network
131s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 22:23
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-334255853.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-334255853.xls
Resource
win10v200722
General
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Target
doc_pack-334255853.xls
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Size
62KB
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MD5
7a0c85f988d75c1fb29c5e1fbf2fd8a2
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SHA1
977b4ec8f6094b975d766ca5c737b59ccc725520
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SHA256
4d4e577b8f11d978d6b240970a88ed4ba69ac3e47da2a850f2f964ef8f23fe9c
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SHA512
7d0696ae77b5fbf96c5d73492f13ecd4e3dd7b47b33533a63d2ea667d07c4c966755da9150c153c34fbde4f5988399bbd9dbad6243aab3630a9516c21601f82b
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 3824 816 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 816 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 816 EXCEL.EXE 816 EXCEL.EXE 3736 dwwin.exe 3736 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 816 EXCEL.EXE 816 EXCEL.EXE 816 EXCEL.EXE 816 EXCEL.EXE 816 EXCEL.EXE 816 EXCEL.EXE 816 EXCEL.EXE 816 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 816 wrote to memory of 3824 816 EXCEL.EXE 73 PID 816 wrote to memory of 3824 816 EXCEL.EXE 73 PID 3824 wrote to memory of 3736 3824 DW20.EXE 74 PID 3824 wrote to memory of 3736 3824 DW20.EXE 74
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-334255853.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:816 -
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 44722⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3824 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44723⤵
- Suspicious behavior: EnumeratesProcesses
PID:3736
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