Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 23:08
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-613234907.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-613234907.xls
Resource
win10v200722
General
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Target
doc_pack-613234907.xls
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Size
62KB
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MD5
560193676be9a92862ddfea0050c5e51
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SHA1
64d12c85992ce1c165cb938fcfb8c4d4a54dc805
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SHA256
4c2415c458154242491b768c12e2f2bdaad2c6b0b3a09f04f65a86e29ed1da11
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SHA512
63b8cf19ed529d018fa86b2a30d69ffbdde12543303f036029e6b728a764b1b576679b22a0b4e7f21b711504d24c7d2e04270fd1e42011c8d45da81597f1c113
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 2636 3908 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\~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 3908 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3908 EXCEL.EXE 3908 EXCEL.EXE 924 dwwin.exe 924 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3908 wrote to memory of 2636 3908 EXCEL.EXE 79 PID 3908 wrote to memory of 2636 3908 EXCEL.EXE 79 PID 2636 wrote to memory of 924 2636 DW20.EXE 80 PID 2636 wrote to memory of 924 2636 DW20.EXE 80
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-613234907.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:3908 -
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 47002⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2636 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47003⤵
- Suspicious behavior: EnumeratesProcesses
PID:924
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