Analysis
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max time kernel
149s -
max time network
147s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:45
Behavioral task
behavioral1
Sample
dfa7d3910b9283c3c0705d71e163dcc915fe98aaa9256d83533c2387cc4b5356.xls
Resource
win10-20220414-en
Behavioral task
behavioral2
Sample
dfa7d3910b9283c3c0705d71e163dcc915fe98aaa9256d83533c2387cc4b5356.xls
Resource
win10-20220414-en
General
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Target
dfa7d3910b9283c3c0705d71e163dcc915fe98aaa9256d83533c2387cc4b5356.xls
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Size
95KB
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MD5
7e50b46cc1c232a549e79094e2fddea5
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SHA1
c78dfe209d833c5954e0987e7b1fa8de60befac9
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SHA256
dfa7d3910b9283c3c0705d71e163dcc915fe98aaa9256d83533c2387cc4b5356
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SHA512
e1bbfc550b924f9739d45c78ec9fcc40258d312baf7d60560dc5ce8566579c0409110f3d8998455fab9efb981834ac8da00bb26d540cfe2f6150fc2497f7ea86
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 988 2808 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3644 2808 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3592 2808 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4916 2808 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 2808 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 2808 EXCEL.EXE 2808 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE 2808 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 2808 wrote to memory of 988 2808 EXCEL.EXE regsvr32.exe PID 2808 wrote to memory of 988 2808 EXCEL.EXE regsvr32.exe PID 2808 wrote to memory of 3644 2808 EXCEL.EXE regsvr32.exe PID 2808 wrote to memory of 3644 2808 EXCEL.EXE regsvr32.exe PID 2808 wrote to memory of 3592 2808 EXCEL.EXE regsvr32.exe PID 2808 wrote to memory of 3592 2808 EXCEL.EXE regsvr32.exe PID 2808 wrote to memory of 4916 2808 EXCEL.EXE regsvr32.exe PID 2808 wrote to memory of 4916 2808 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\dfa7d3910b9283c3c0705d71e163dcc915fe98aaa9256d83533c2387cc4b5356.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/988-264-0x0000000000000000-mapping.dmp
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memory/2808-114-0x00007FFC50A60000-0x00007FFC50A70000-memory.dmpFilesize
64KB
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memory/2808-115-0x00007FFC50A60000-0x00007FFC50A70000-memory.dmpFilesize
64KB
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memory/2808-116-0x00007FFC50A60000-0x00007FFC50A70000-memory.dmpFilesize
64KB
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memory/2808-117-0x00007FFC50A60000-0x00007FFC50A70000-memory.dmpFilesize
64KB
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memory/2808-126-0x00007FFC4CFA0000-0x00007FFC4CFB0000-memory.dmpFilesize
64KB
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memory/2808-127-0x00007FFC4CFA0000-0x00007FFC4CFB0000-memory.dmpFilesize
64KB
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memory/3592-266-0x0000000000000000-mapping.dmp
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memory/3644-265-0x0000000000000000-mapping.dmp
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memory/4916-269-0x0000000000000000-mapping.dmp