Analysis
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max time kernel
119s -
max time network
135s -
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
2014维修一车间三组修旧利废核算表.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
2014维修一车间三组修旧利废核算表.xls
Resource
win10v2004-20220812-en
Behavioral task
behavioral3
Sample
维修一三组10月月报.xls
Resource
win7-20221111-en
Behavioral task
behavioral4
Sample
维修一三组10月月报.xls
Resource
win10v2004-20220901-en
Behavioral task
behavioral5
Sample
维修一三组10月运转设备报表.xls
Resource
win7-20220901-en
Behavioral task
behavioral6
Sample
维修一三组10月运转设备报表.xls
Resource
win10v2004-20221111-en
General
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Target
2014维修一车间三组修旧利废核算表.xls
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Size
100KB
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MD5
eeef638de5651e59c5dc24836f37306c
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SHA1
be14cdd2fde6dd1165204a81f19b20783e2a4db7
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SHA256
8ab516628cdac8d4a61e48303cc71933e8e2ce18eb0b79eaf63054076c636d76
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SHA512
9b9d9ddad6d987787b35fd481bef6ea477fa8b80691fecb180b0bf9bd345b3cfcde9bba21f1487a0aeabaa3bb12084d963e45c0a7f2a2392105bc29ec6be1a90
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SSDEEP
1536:go777VmRqV+4w75Z5sKJQHnwZ95J6eoJLWVbrzJxE6HD7ITkR62lIM88STJtXwRe:V5zWVbrzJ6KD7ITk9njiJtXwL5kacsG
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 1768 2372 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4648 2372 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4232 2372 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2372 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 2372 wrote to memory of 1768 2372 EXCEL.EXE cmd.exe PID 2372 wrote to memory of 1768 2372 EXCEL.EXE cmd.exe PID 2372 wrote to memory of 4648 2372 EXCEL.EXE cmd.exe PID 2372 wrote to memory of 4648 2372 EXCEL.EXE cmd.exe PID 2372 wrote to memory of 4232 2372 EXCEL.EXE cmd.exe PID 2372 wrote to memory of 4232 2372 EXCEL.EXE cmd.exe PID 1768 wrote to memory of 4280 1768 cmd.exe attrib.exe PID 1768 wrote to memory of 4280 1768 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\2014维修一车间三组修旧利废核算表.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/1768-139-0x0000000000000000-mapping.dmp
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memory/2372-138-0x00007FFB3E250000-0x00007FFB3E260000-memory.dmpFilesize
64KB
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memory/2372-144-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/2372-135-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/2372-136-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/2372-137-0x00007FFB3E250000-0x00007FFB3E260000-memory.dmpFilesize
64KB
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memory/2372-132-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/2372-133-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/2372-147-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/2372-146-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/2372-145-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/2372-134-0x00007FFB406D0000-0x00007FFB406E0000-memory.dmpFilesize
64KB
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memory/4232-141-0x0000000000000000-mapping.dmp
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memory/4280-142-0x0000000000000000-mapping.dmp
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memory/4648-140-0x0000000000000000-mapping.dmp