Analysis
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max time kernel
136s -
max time network
129s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
13-03-2021 11:35
Behavioral task
behavioral1
Sample
CompensationClaim_847899379_03122021.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
CompensationClaim_847899379_03122021.xls
Resource
win10v20201028
General
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Target
CompensationClaim_847899379_03122021.xls
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Size
280KB
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MD5
3e7a0655c80129cc84e6b0415f0acedf
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SHA1
1def6f7e96b0f4a8b4300cb1dd1bde39bed50520
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SHA256
908cc857270fcc0f0c278165df9cf6b5ff008388722e687eb9d6544def9c49db
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SHA512
f5c040662fee49c81d2bd21409ca84d2c3083b4253fdfe8765d47c41b608f2a741b725901f256c17725c7089daa30a4f3151dc31478b240cdd3d72363b188041
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:
rundll32.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 3872 4684 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2924 4684 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4052 4684 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 4684 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 4684 EXCEL.EXE 4684 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 4684 wrote to memory of 3872 4684 EXCEL.EXE rundll32.exe PID 4684 wrote to memory of 3872 4684 EXCEL.EXE rundll32.exe PID 4684 wrote to memory of 2924 4684 EXCEL.EXE rundll32.exe PID 4684 wrote to memory of 2924 4684 EXCEL.EXE rundll32.exe PID 4684 wrote to memory of 4052 4684 EXCEL.EXE rundll32.exe PID 4684 wrote to memory of 4052 4684 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\CompensationClaim_847899379_03122021.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
PID:4684 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Runtim.broks,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3872 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Runtim.broks1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2924 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Runtim.broks2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4052
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2924-8-0x0000000000000000-mapping.dmp
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memory/3872-7-0x0000000000000000-mapping.dmp
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memory/4052-9-0x0000000000000000-mapping.dmp
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memory/4684-2-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmpFilesize
64KB
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memory/4684-3-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmpFilesize
64KB
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memory/4684-4-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmpFilesize
64KB
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memory/4684-5-0x00007FFEEB2F0000-0x00007FFEEB927000-memory.dmpFilesize
6.2MB
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memory/4684-6-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmpFilesize
64KB