Analysis
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max time kernel
137s -
max time network
122s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
20-02-2021 11:30
Behavioral task
behavioral1
Sample
document-871813132.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
document-871813132.xls
Resource
win10v20201028
General
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Target
document-871813132.xls
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Size
89KB
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MD5
b513cec51f27439d29fac0f50dddfc2e
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SHA1
f13417ee00c33d16b6cc23772710dafcddcbe7df
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SHA256
56c3b93db9d347f6ce801f8100d58561d60fa111ae394278471eb0713c799ef8
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SHA512
b258dcbfd69d264639d4bc8e06ce77d75f9f2ac256114ff49dc58225135779a9b0fc418d4bd5dc00ac1f6df57003dc46afd2093b5d1e3757bd42622981bbd10d
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 2660 492 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 492 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE 492 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 492 wrote to memory of 2660 492 EXCEL.EXE rundll32.exe PID 492 wrote to memory of 2660 492 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-871813132.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 ..\iopjvdf.vock,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/492-2-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmpFilesize
64KB
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memory/492-3-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmpFilesize
64KB
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memory/492-4-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmpFilesize
64KB
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memory/492-5-0x00007FFA13B00000-0x00007FFA14137000-memory.dmpFilesize
6.2MB
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memory/492-6-0x00007FF9F0570000-0x00007FF9F0580000-memory.dmpFilesize
64KB
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memory/2660-7-0x0000000000000000-mapping.dmp