Analysis
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max time kernel
103s -
max time network
133s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
13-05-2021 14:08
Behavioral task
behavioral1
Sample
Debt-Details-1385401412-05132021.xlsm
Resource
win7v20210408
Behavioral task
behavioral2
Sample
Debt-Details-1385401412-05132021.xlsm
Resource
win10v20210410
General
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Target
Debt-Details-1385401412-05132021.xlsm
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Size
196KB
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MD5
6c9c10e26b13844548eb88771049cd82
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SHA1
a29161b4d65e61fc692033361b5d308c6952247b
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SHA256
4c81a50e834bf77b8cd781a24247d3748372601df366b61a96bf7c30c8c46cca
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SHA512
b463e6e15fa457d26e67f28c6c019e68fdefa7c5432a17bd17251acfa695fb57aa65d80fb8b83006b15c85fe12beb3fc0d6d3fb5a14e3b49e60feb4bf9ecd7fe
Malware Config
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exerundll32.exerundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3508 3896 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1940 3896 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1832 3896 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 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 3896 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE 3896 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 3896 wrote to memory of 3508 3896 EXCEL.EXE rundll32.exe PID 3896 wrote to memory of 3508 3896 EXCEL.EXE rundll32.exe PID 3896 wrote to memory of 1940 3896 EXCEL.EXE rundll32.exe PID 3896 wrote to memory of 1940 3896 EXCEL.EXE rundll32.exe PID 3896 wrote to memory of 1832 3896 EXCEL.EXE rundll32.exe PID 3896 wrote to memory of 1832 3896 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\Debt-Details-1385401412-05132021.xlsm"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 ..\lertio.cersw,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\lertio.cersw1,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\lertio.cersw2,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1832-181-0x0000000000000000-mapping.dmp
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memory/1940-180-0x0000000000000000-mapping.dmp
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memory/3508-179-0x0000000000000000-mapping.dmp
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memory/3896-114-0x00007FF70A400000-0x00007FF70D9B6000-memory.dmpFilesize
53.7MB
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memory/3896-115-0x00007FFA08250000-0x00007FFA08260000-memory.dmpFilesize
64KB
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memory/3896-116-0x00007FFA08250000-0x00007FFA08260000-memory.dmpFilesize
64KB
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memory/3896-117-0x00007FFA08250000-0x00007FFA08260000-memory.dmpFilesize
64KB
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memory/3896-118-0x00007FFA08250000-0x00007FFA08260000-memory.dmpFilesize
64KB
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memory/3896-121-0x00007FFA28EA0000-0x00007FFA29F8E000-memory.dmpFilesize
16.9MB
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memory/3896-122-0x00007FFA08250000-0x00007FFA08260000-memory.dmpFilesize
64KB
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memory/3896-123-0x00007FFA26FA0000-0x00007FFA28E95000-memory.dmpFilesize
31.0MB