Analysis
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max time kernel
142s -
max time network
134s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
03-03-2021 03:30
Behavioral task
behavioral1
Sample
document-1541761416.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
document-1541761416.xls
Resource
win10v20201028
General
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Target
document-1541761416.xls
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Size
86KB
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MD5
36940b6627143038880da0a81dc9f7df
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SHA1
d4c2f6b0e04c5678cadb31d26286aca58c5baab8
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SHA256
effa3b97b8d62971388819456ada7a792b772b05d7d02d3c4f97bfa1a6056c00
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SHA512
c27a75ea1289af591cc6296435b6a05b8f5ed4f2c144ed4f578d0c6e5306e7e8a8e374473c3b40c761f56e5b8637c83fa72381aa5f38147bb624116382501587
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3836 1052 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1052 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE 1052 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1052 wrote to memory of 3836 1052 EXCEL.EXE rundll32.exe PID 1052 wrote to memory of 3836 1052 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\document-1541761416.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\rundll32.exerundll32 ..\IEUDLK.CJF,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1052-2-0x00007FFE80C20000-0x00007FFE80C30000-memory.dmpFilesize
64KB
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memory/1052-3-0x00007FFE80C20000-0x00007FFE80C30000-memory.dmpFilesize
64KB
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memory/1052-4-0x00007FFE80C20000-0x00007FFE80C30000-memory.dmpFilesize
64KB
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memory/1052-5-0x00007FFE80C20000-0x00007FFE80C30000-memory.dmpFilesize
64KB
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memory/1052-6-0x00007FFEA4200000-0x00007FFEA4837000-memory.dmpFilesize
6.2MB
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memory/3836-7-0x0000000000000000-mapping.dmp