Analysis
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max time kernel
119s -
max time network
132s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-563089002.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-563089002.xls
Resource
win10
General
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Target
doc_pack-563089002.xls
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Size
62KB
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MD5
4f33d4138105b914b028d39ce392e18d
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SHA1
7653130db1a9d378d147be41268bd423d8fd94f7
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SHA256
af50178fc99d56f60d1126bbaef00cc712a61d975381c55a08b63ea3ade0401c
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SHA512
e29fc2eec7752555f8f588839ab182b4c2e21045bb794730134331fe67e68ad2be057052be045b48551af45d0fe0383be60f11f518afa97c9ff847629ac5e624
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 1956 3676 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 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 3676 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3676 EXCEL.EXE 3676 EXCEL.EXE 1544 dwwin.exe 1544 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3676 EXCEL.EXE 3676 EXCEL.EXE 3676 EXCEL.EXE 3676 EXCEL.EXE 3676 EXCEL.EXE 3676 EXCEL.EXE 3676 EXCEL.EXE 3676 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3676 wrote to memory of 1956 3676 EXCEL.EXE 76 PID 3676 wrote to memory of 1956 3676 EXCEL.EXE 76 PID 1956 wrote to memory of 1544 1956 DW20.EXE 77 PID 1956 wrote to memory of 1544 1956 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-563089002.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:3676 -
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 44682⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44683⤵
- Suspicious behavior: EnumeratesProcesses
PID:1544
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