Analysis
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max time kernel
127s -
max time network
130s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:49
Behavioral task
behavioral1
Sample
1d8e9243522cbb094554ed8470806b81df9f75e983c081dff52af69c9d81be63.xls
Resource
win10-20220414-en
General
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Target
1d8e9243522cbb094554ed8470806b81df9f75e983c081dff52af69c9d81be63.xls
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Size
95KB
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MD5
b42a09520b929f8c459751b22b4239e4
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SHA1
2d78e3a03be4bf2d377e7fa9fbc2c879b9453f84
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SHA256
1d8e9243522cbb094554ed8470806b81df9f75e983c081dff52af69c9d81be63
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SHA512
25b4210af3e7217d41089fc539fae47c815a8e5445d3899064d363e46d6c5cee3661fa07b32f1c5becce78607b6077bbfefb4d55f257527cf666552e24967567
Malware Config
Extracted
http://www.sunflowerlaboratory.in/fonts/79Tq62ly/
http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/
http://agtrade.hu/images/kiQYmOs2tSKq/
https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/
Signatures
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Process spawned unexpected child process 4 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 924 708 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1212 708 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1852 708 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2108 708 regsvr32.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 708 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 708 EXCEL.EXE 708 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 708 wrote to memory of 924 708 EXCEL.EXE regsvr32.exe PID 708 wrote to memory of 924 708 EXCEL.EXE regsvr32.exe PID 708 wrote to memory of 1212 708 EXCEL.EXE regsvr32.exe PID 708 wrote to memory of 1212 708 EXCEL.EXE regsvr32.exe PID 708 wrote to memory of 1852 708 EXCEL.EXE regsvr32.exe PID 708 wrote to memory of 1852 708 EXCEL.EXE regsvr32.exe PID 708 wrote to memory of 2108 708 EXCEL.EXE regsvr32.exe PID 708 wrote to memory of 2108 708 EXCEL.EXE regsvr32.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\1d8e9243522cbb094554ed8470806b81df9f75e983c081dff52af69c9d81be63.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci1.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci2.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci3.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci4.ocx2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/708-308-0x00007FFBB6C20000-0x00007FFBB6C30000-memory.dmpFilesize
64KB
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memory/708-117-0x00007FFBB6C20000-0x00007FFBB6C30000-memory.dmpFilesize
64KB
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memory/708-118-0x00007FFBB6C20000-0x00007FFBB6C30000-memory.dmpFilesize
64KB
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memory/708-119-0x00007FFBB6C20000-0x00007FFBB6C30000-memory.dmpFilesize
64KB
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memory/708-128-0x00007FFBB38D0000-0x00007FFBB38E0000-memory.dmpFilesize
64KB
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memory/708-129-0x00007FFBB38D0000-0x00007FFBB38E0000-memory.dmpFilesize
64KB
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memory/708-116-0x00007FFBB6C20000-0x00007FFBB6C30000-memory.dmpFilesize
64KB
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memory/708-311-0x00007FFBB6C20000-0x00007FFBB6C30000-memory.dmpFilesize
64KB
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memory/708-310-0x00007FFBB6C20000-0x00007FFBB6C30000-memory.dmpFilesize
64KB
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memory/708-309-0x00007FFBB6C20000-0x00007FFBB6C30000-memory.dmpFilesize
64KB
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memory/924-266-0x0000000000000000-mapping.dmp
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memory/1212-267-0x0000000000000000-mapping.dmp
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memory/1852-268-0x0000000000000000-mapping.dmp
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memory/2108-271-0x0000000000000000-mapping.dmp