Analysis
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max time kernel
128s -
max time network
135s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:22
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-389030404.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-389030404.xls
Resource
win10
General
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Target
doc_pack-389030404.xls
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Size
62KB
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MD5
ddaff0e1e9f8132be566f7f2572ef315
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SHA1
1af8182f7afb227141ee7a29bd1450cb1fe3c25e
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SHA256
8dfafffb647f6cc4c36c7eef448a2422616cc587b067232184fb04c4be3475ae
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SHA512
77df126278d0528a232501376beb24d78634dee2fc1b5dd56566fc62066f314501e981f1d4fd10dd066ae512e10a2cb02882ce3c31aa7eb8dbd141b3da317d3d
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 1876 3576 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 3576 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3576 EXCEL.EXE 3576 EXCEL.EXE 1360 dwwin.exe 1360 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE 3576 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3576 wrote to memory of 1876 3576 EXCEL.EXE 76 PID 3576 wrote to memory of 1876 3576 EXCEL.EXE 76 PID 1876 wrote to memory of 1360 1876 DW20.EXE 77 PID 1876 wrote to memory of 1360 1876 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-389030404.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:3576 -
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:1876 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44683⤵
- Suspicious behavior: EnumeratesProcesses
PID:1360
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