Analysis
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max time kernel
122s -
max time network
127s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:23
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-332132846.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-332132846.xls
Resource
win10
General
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Target
doc_pack-332132846.xls
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Size
62KB
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MD5
a08fd742bd589a22f1f956943a6dc3e5
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SHA1
0e8ef2c2ea0b5886a21a8d4179545d0d26b96ea6
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SHA256
7f7c3c5e028911860223869b8d579191f24b2a5a915eaaeacb5cefc8e2e38ae9
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SHA512
700e5aa2e539cd6c46216268094db29fa5353b7316d9616f642049d771005bb84455154e7c13ff84abfc0928a2b869baeb91c07bd56ccdc7a53d0c645b949c29
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 3008 4092 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\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 4092 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4092 EXCEL.EXE 4092 EXCEL.EXE 3664 dwwin.exe 3664 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4092 wrote to memory of 3008 4092 EXCEL.EXE 76 PID 4092 wrote to memory of 3008 4092 EXCEL.EXE 76 PID 3008 wrote to memory of 3664 3008 DW20.EXE 77 PID 3008 wrote to memory of 3664 3008 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-332132846.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:4092 -
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 44402⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3008 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44403⤵
- Suspicious behavior: EnumeratesProcesses
PID:3664
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