Analysis
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max time kernel
95s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07-09-2024 07:08
Behavioral task
behavioral1
Sample
中小学名单/2012农村中学.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
中小学名单/2012农村中学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
中小学名单/2012农村小学.xls
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
中小学名单/2012农村小学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
中小学名单/2012城市中学.xls
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
中小学名单/2012城市中学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
中小学名单/2012城市小学.xls
Resource
win7-20240708-en
Behavioral task
behavioral8
Sample
中小学名单/2012城市小学.xls
Resource
win10v2004-20240802-en
General
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Target
中小学名单/2012城市小学.xls
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Size
137KB
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MD5
441ee7b24964ea16bc493ba8d16cfcc3
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SHA1
494430055b382c317a2de645f02433c730642f88
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SHA256
0a0e20688b031efbaad3dcae47a6419065312914c7fab1e2355074cbef891078
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SHA512
7e8351aeaa01e2a26df1223a9598a3e15bdf790318cad304e20f0b96954cc4e3d6f6baed0b80332c16999cbb3578c347aff9761b9aa0390e681d4a81ac2e9e32
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SSDEEP
1536:fllllJhrYqGu/fgPrMsl/HORPN/Z95qWBco7W0ZF3XAyRmhVY0WVbrzQ7ITkC1xY:l5hW0ZFl0PWVbrzQ7ITkvxU0JtXwslP
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.
Processes:
DW20.EXEdescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 64 528 DW20.EXE EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
dwwin.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dwwin.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
dwwin.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dwwin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 528 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
EXCEL.EXEpid process 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE 528 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEDW20.EXEdescription pid process target process PID 528 wrote to memory of 64 528 EXCEL.EXE DW20.EXE PID 528 wrote to memory of 64 528 EXCEL.EXE DW20.EXE PID 64 wrote to memory of 1068 64 DW20.EXE dwwin.exe PID 64 wrote to memory of 1068 64 DW20.EXE dwwin.exe
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\中小学名单\2012城市小学.xls"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:528 -
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 46162⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:64 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46163⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:1068