Analysis
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max time kernel
149s -
max time network
144s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 04:33
Behavioral task
behavioral1
Sample
72faf89c145e63853a926fa5863c37acff737554ca946d3087a657e18bd8c239.xls
Resource
win10-20220414-en
General
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Target
72faf89c145e63853a926fa5863c37acff737554ca946d3087a657e18bd8c239.xls
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Size
95KB
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MD5
ad41efb8881bb086f06a96751d20d4f2
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SHA1
f1ae9537230935e750f6a1b9851dc968a1ea2ca4
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SHA256
72faf89c145e63853a926fa5863c37acff737554ca946d3087a657e18bd8c239
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SHA512
1c17c432f71f9e4c16b1f2cb6050713f3633d79ead7bbce39f8bfd184e4723b754a658385e718a2b809fdfd869c1e9aea425d3679bde32c203f92590be79fdba
Malware Config
Extracted
http://www.sunflowerlaboratory.in/fonts/79Tq62ly/
http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/
http://agtrade.hu/images/kiQYmOs2tSKq/
https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/
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 3428 1976 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4588 1976 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3276 1976 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1532 1976 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 1976 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 1976 EXCEL.EXE 1976 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1976 wrote to memory of 3428 1976 EXCEL.EXE regsvr32.exe PID 1976 wrote to memory of 3428 1976 EXCEL.EXE regsvr32.exe PID 1976 wrote to memory of 4588 1976 EXCEL.EXE regsvr32.exe PID 1976 wrote to memory of 4588 1976 EXCEL.EXE regsvr32.exe PID 1976 wrote to memory of 3276 1976 EXCEL.EXE regsvr32.exe PID 1976 wrote to memory of 3276 1976 EXCEL.EXE regsvr32.exe PID 1976 wrote to memory of 1532 1976 EXCEL.EXE regsvr32.exe PID 1976 wrote to memory of 1532 1976 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\72faf89c145e63853a926fa5863c37acff737554ca946d3087a657e18bd8c239.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
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Downloads
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memory/1532-272-0x0000000000000000-mapping.dmp
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memory/1976-117-0x00007FFDF6F50000-0x00007FFDF6F60000-memory.dmpFilesize
64KB
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memory/1976-118-0x00007FFDF6F50000-0x00007FFDF6F60000-memory.dmpFilesize
64KB
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memory/1976-119-0x00007FFDF6F50000-0x00007FFDF6F60000-memory.dmpFilesize
64KB
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memory/1976-120-0x00007FFDF6F50000-0x00007FFDF6F60000-memory.dmpFilesize
64KB
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memory/1976-129-0x00007FFDF4120000-0x00007FFDF4130000-memory.dmpFilesize
64KB
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memory/1976-130-0x00007FFDF4120000-0x00007FFDF4130000-memory.dmpFilesize
64KB
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memory/3276-269-0x0000000000000000-mapping.dmp
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memory/3428-267-0x0000000000000000-mapping.dmp
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memory/4588-268-0x0000000000000000-mapping.dmp