Analysis
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max time kernel
136s -
max time network
137s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
12-03-2021 11:35
Behavioral task
behavioral1
Sample
Cancellation-1833116253-03112021.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
Cancellation-1833116253-03112021.xls
Resource
win10v20201028
General
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Target
Cancellation-1833116253-03112021.xls
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Size
277KB
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MD5
a1f1f52796d8f655dd0603fb8368ecc0
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SHA1
af2b833eede2aae9f9dc5862c34ea19b826cc081
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SHA256
9826463d649ddac393a09764050fc6ebf824d06dc05b8c105fdced3eac4cbc02
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SHA512
a1e7ed059a4e6686e7bce6542eea97481a25dea93133e982b53c6441bb05eeb3c9bb15ba080d81182b330586135cef85e491e5e948769d945275341ea630067b
Malware Config
Signatures
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Process spawned unexpected child process 5 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exerundll32.exerundll32.exerundll32.exerundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2932 3976 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1584 3976 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1332 3976 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2744 3976 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2692 3976 rundll32.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 3976 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 3976 EXCEL.EXE 3976 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 3976 wrote to memory of 2932 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 2932 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 1584 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 1584 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 1332 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 1332 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 2744 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 2744 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 2692 3976 EXCEL.EXE rundll32.exe PID 3976 wrote to memory of 2692 3976 EXCEL.EXE rundll32.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\Cancellation-1833116253-03112021.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\rundll32.exerundll32 ..\Runtime.brok,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Runtime.brok1,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Runtime.brok2,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Runtime.brok3,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Runtime.brok4,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1332-9-0x0000000000000000-mapping.dmp
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memory/1584-8-0x0000000000000000-mapping.dmp
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memory/2692-11-0x0000000000000000-mapping.dmp
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memory/2744-10-0x0000000000000000-mapping.dmp
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memory/2932-7-0x0000000000000000-mapping.dmp
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memory/3976-2-0x00007FFC7E0E0000-0x00007FFC7E0F0000-memory.dmpFilesize
64KB
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memory/3976-3-0x00007FFC7E0E0000-0x00007FFC7E0F0000-memory.dmpFilesize
64KB
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memory/3976-4-0x00007FFC7E0E0000-0x00007FFC7E0F0000-memory.dmpFilesize
64KB
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memory/3976-5-0x00007FFCA1460000-0x00007FFCA1A97000-memory.dmpFilesize
6.2MB
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memory/3976-6-0x00007FFC7E0E0000-0x00007FFC7E0F0000-memory.dmpFilesize
64KB