Analysis
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max time kernel
101s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
31-01-2023 17:36
Behavioral task
behavioral1
Sample
347b6c6773dea2ba535b103b71eee2ac.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
347b6c6773dea2ba535b103b71eee2ac.xls
Resource
win10v2004-20220812-en
General
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Target
347b6c6773dea2ba535b103b71eee2ac.xls
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Size
364KB
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MD5
347b6c6773dea2ba535b103b71eee2ac
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SHA1
0cfc0bc896b565e0956851c09627f21d31a885b2
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SHA256
380c84d48cd130ba3d784421c9a175debe7c7108db06da283b44549cccdfd77d
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SHA512
7f24626d0876d2ca1bc7e1c5b3fefd19e357b05aa03daab511379f571aeabde8d704cd1060c3a7b6f5d6c0d070b7ff79cf58ec701df6d1580d1d313f601eec58
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SSDEEP
3072:KXBlllllllllllllllllllllllllXO7WXW1+cCUQCiWqAZffIXdHMnIr2FhqDow2:97WXWkWvfhWYlF73k
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 4512 3036 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 616 3036 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1904 3036 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 3036 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE 3036 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 3036 wrote to memory of 4512 3036 EXCEL.EXE cmd.exe PID 3036 wrote to memory of 4512 3036 EXCEL.EXE cmd.exe PID 3036 wrote to memory of 616 3036 EXCEL.EXE cmd.exe PID 3036 wrote to memory of 616 3036 EXCEL.EXE cmd.exe PID 3036 wrote to memory of 1904 3036 EXCEL.EXE cmd.exe PID 3036 wrote to memory of 1904 3036 EXCEL.EXE cmd.exe PID 4512 wrote to memory of 3092 4512 cmd.exe attrib.exe PID 4512 wrote to memory of 3092 4512 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\347b6c6773dea2ba535b103b71eee2ac.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/616-140-0x0000000000000000-mapping.dmp
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memory/1904-141-0x0000000000000000-mapping.dmp
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memory/3036-135-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3036-132-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3036-136-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3036-137-0x00007FFDBBF80000-0x00007FFDBBF90000-memory.dmpFilesize
64KB
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memory/3036-138-0x00007FFDBBF80000-0x00007FFDBBF90000-memory.dmpFilesize
64KB
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memory/3036-134-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3036-133-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3036-144-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3036-145-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3036-146-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3036-147-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/3092-142-0x0000000000000000-mapping.dmp
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memory/4512-139-0x0000000000000000-mapping.dmp