Analysis
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max time kernel
128s -
max time network
131s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 04:38
Behavioral task
behavioral1
Sample
0bea2e002fc3342379e6e46085f4348a9311b515f7a8a544f84ecd4a3913ea00.xls
Resource
win10-20220414-en
General
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Target
0bea2e002fc3342379e6e46085f4348a9311b515f7a8a544f84ecd4a3913ea00.xls
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Size
95KB
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MD5
efdccd892c56a6abe2d46715b89edcba
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SHA1
0412cf7404530ecc2aadcb9bb12dff71f4bf69ef
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SHA256
0bea2e002fc3342379e6e46085f4348a9311b515f7a8a544f84ecd4a3913ea00
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SHA512
2ce77ea80414c204bc76b28c119aed32262a460fe87d58f9669880d4837495e9919304e718320164360e6452deab1eac1262ee4f01de444401ef2997a68380a0
Malware Config
Extracted
https://edoraseguros.com.br/cgi-bin/jQNq9wlH1GXU/
http://earthmach.co.za/libraries/tWkZh9YrXbTd6IeX/
http://finvest.rs/wp-admin/Hr9nVNTIHgw59S/
http://efverstedt.se/5jjaV/w7fLEHJ20xn0qD/
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 4908 2844 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5012 2844 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1732 2844 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3444 2844 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 2844 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 2844 EXCEL.EXE 2844 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE 2844 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 2844 wrote to memory of 4908 2844 EXCEL.EXE regsvr32.exe PID 2844 wrote to memory of 4908 2844 EXCEL.EXE regsvr32.exe PID 2844 wrote to memory of 5012 2844 EXCEL.EXE regsvr32.exe PID 2844 wrote to memory of 5012 2844 EXCEL.EXE regsvr32.exe PID 2844 wrote to memory of 1732 2844 EXCEL.EXE regsvr32.exe PID 2844 wrote to memory of 1732 2844 EXCEL.EXE regsvr32.exe PID 2844 wrote to memory of 3444 2844 EXCEL.EXE regsvr32.exe PID 2844 wrote to memory of 3444 2844 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\0bea2e002fc3342379e6e46085f4348a9311b515f7a8a544f84ecd4a3913ea00.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/1732-257-0x0000000000000000-mapping.dmp
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memory/2844-298-0x00007FFD71990000-0x00007FFD719A0000-memory.dmpFilesize
64KB
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memory/2844-120-0x00007FFD71990000-0x00007FFD719A0000-memory.dmpFilesize
64KB
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memory/2844-121-0x00007FFD71990000-0x00007FFD719A0000-memory.dmpFilesize
64KB
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memory/2844-122-0x00007FFD71990000-0x00007FFD719A0000-memory.dmpFilesize
64KB
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memory/2844-131-0x00007FFD6EC30000-0x00007FFD6EC40000-memory.dmpFilesize
64KB
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memory/2844-132-0x00007FFD6EC30000-0x00007FFD6EC40000-memory.dmpFilesize
64KB
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memory/2844-300-0x00007FFD71990000-0x00007FFD719A0000-memory.dmpFilesize
64KB
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memory/2844-299-0x00007FFD71990000-0x00007FFD719A0000-memory.dmpFilesize
64KB
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memory/2844-119-0x00007FFD71990000-0x00007FFD719A0000-memory.dmpFilesize
64KB
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memory/2844-297-0x00007FFD71990000-0x00007FFD719A0000-memory.dmpFilesize
64KB
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memory/3444-258-0x0000000000000000-mapping.dmp
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memory/4908-255-0x0000000000000000-mapping.dmp
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memory/5012-256-0x0000000000000000-mapping.dmp