Analysis
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max time kernel
137s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 19:24
Behavioral task
behavioral1
Sample
《贵州省农村信用社诉讼代理管理(暂行)办法》(征求意见稿).doc
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
《贵州省农村信用社诉讼代理管理(暂行)办法》(征求意见稿).doc
Resource
win10v2004-20220812-en
Behavioral task
behavioral3
Sample
关于征求《贵州农村信用社诉讼代理管理(暂行)办法》意见的通知.doc
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
关于征求《贵州农村信用社诉讼代理管理(暂行)办法》意见的通知.doc
Resource
win10v2004-20220812-en
Behavioral task
behavioral5
Sample
附件3.贵州省农村信用社诉讼代理情况统计表.xls
Resource
win7-20221111-en
Behavioral task
behavioral6
Sample
附件3.贵州省农村信用社诉讼代理情况统计表.xls
Resource
win10v2004-20220812-en
General
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Target
附件3.贵州省农村信用社诉讼代理情况统计表.xls
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Size
94KB
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MD5
dc6edac97e74436f15c7a99d2e33ff72
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SHA1
6f3e881eb6f5657baf8c4666fa4db1f1302759fd
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SHA256
77e8d430646fee3f512edaf76bb2e2d0762a11595af1b87b6ede82eae8cba227
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SHA512
0e12835ae000ae19db1a29cc3991c2b4e84ecee491aed6f7072bf37e65ab859a60313ad625910ce6f0c877f97ea302ed38e762fe58c4ffc74b26b557b5e74bd4
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SSDEEP
1536:r999X9UgoRGx5/I9RizChe8EmXZ95WfRVQs2jcc0lbxOvTgZEM88kcJtXwd2u:ya2jcc0lbxOrwjnJtXwAu
Malware Config
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.execmd.execmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1292 1824 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4456 1824 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 928 1824 cmd.exe EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEpid process 1824 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE 1824 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 1824 wrote to memory of 1292 1824 EXCEL.EXE cmd.exe PID 1824 wrote to memory of 1292 1824 EXCEL.EXE cmd.exe PID 1824 wrote to memory of 4456 1824 EXCEL.EXE cmd.exe PID 1824 wrote to memory of 4456 1824 EXCEL.EXE cmd.exe PID 1824 wrote to memory of 928 1824 EXCEL.EXE cmd.exe PID 1824 wrote to memory of 928 1824 EXCEL.EXE cmd.exe PID 1292 wrote to memory of 4232 1292 cmd.exe attrib.exe PID 1292 wrote to memory of 4232 1292 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
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\附件3.贵州省农村信用社诉讼代理情况统计表.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/928-141-0x0000000000000000-mapping.dmp
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memory/1292-139-0x0000000000000000-mapping.dmp
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memory/1824-145-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/1824-133-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/1824-136-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/1824-137-0x00007FFA43E70000-0x00007FFA43E80000-memory.dmpFilesize
64KB
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memory/1824-138-0x00007FFA43E70000-0x00007FFA43E80000-memory.dmpFilesize
64KB
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memory/1824-134-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/1824-148-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/1824-135-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/1824-142-0x00000261F446C000-0x00000261F446E000-memory.dmpFilesize
8KB
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memory/1824-147-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/1824-132-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/1824-146-0x00007FFA46370000-0x00007FFA46380000-memory.dmpFilesize
64KB
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memory/4232-143-0x0000000000000000-mapping.dmp
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memory/4456-140-0x0000000000000000-mapping.dmp