Analysis
- max time kernel
136s - max time network
129s - platform
windows10_x64 - resource
win10v20201028 - submitted
24/03/2021, 17:47
Static task
static1
Behavioral task
behavioral1
Sample
Document121025675103242021Copy.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Document121025675103242021Copy.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target Document121025675103242021Copy.xlsm
- Size 170KB
- Sample210324-fft37ghdka
- SHA256 712e4223cb05aaa0c1af6b8e2e4e390b319e6794ec710383fe8eb646a3a81655
- MD5 decfd8e965cadd59298cde624480e488
- SHA1 4b8249bcee0ac83616ea94fdebc9ab9f82c30b18
- SHA512 8275f57ce5f2b7d02609b80e2da6d984f20b97b521aca2d981b33e0a2fecd91076d9c83d51f3a6784c0b47b46ad571b53b5a77e3077ca0c8b454ae22a987e0f3
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 968 1108 Rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1236 1108 Rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3892 1108 Rundll32.exe 68 - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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
pid Process 1108 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE 1108 EXCEL.EXE - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1108 wrote to memory of 968 1108 EXCEL.EXE 83 PID 1108 wrote to memory of 968 1108 EXCEL.EXE 83 PID 1108 wrote to memory of 1236 1108 EXCEL.EXE 84 PID 1108 wrote to memory of 1236 1108 EXCEL.EXE 84 PID 1108 wrote to memory of 3892 1108 EXCEL.EXE 85 PID 1108 wrote to memory of 3892 1108 EXCEL.EXE 85
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\Document121025675103242021Copy.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\Windows\SYSTEM32\Rundll32.exeRundll32 ..\Fol.doka,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:968
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C:\Windows\SYSTEM32\Rundll32.exeRundll32 ..\Fol.doka1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1236
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C:\Windows\SYSTEM32\Rundll32.exeRundll32 ..\Fol.doka2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3892
-