Analysis
- max time kernel
135s - max time network
133s - platform
windows10_x64 - resource
win10 - submitted
09/10/2020, 19:21
Static task
static1
Behavioral task
behavioral1
Sample
inv_9386.xls
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
inv_9386.xls
Resource
win10
0 signatures
0 seconds
General
- Target inv_9386.xls
- Size 42KB
- Sample201009-ld43wxpyd6
- SHA256 df1a2b784203a1c43c400e686c9caee56feb6bad649a6ecf2a87df99d33ad8ab
- MD5 ac1dca9ee2e3866002eee92a1ade55d4
- SHA1 76e92bfed7bd150af39b4e3acb24a739cb92b235
- SHA512 fdd5a6aba7961ebbaab3aaf156f5f57d799c0b25b6854fb9af3233f9fb9033e31b1c5272b36353809dce3999afca7657c4c6ee140568a3c97826ab17305d8f8b
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Process spawned unexpected child process 1 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 2676 3832 explorer.exe 66 - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
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 - Modifies registry key 1 TTPs 1 IoCs
pid Process 2124 reg.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3832 EXCEL.EXE - Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3832 wrote to memory of 2676 3832 EXCEL.EXE 76 PID 3832 wrote to memory of 2676 3832 EXCEL.EXE 76 PID 2612 wrote to memory of 3356 2612 explorer.exe 78 PID 2612 wrote to memory of 3356 2612 explorer.exe 78 PID 3356 wrote to memory of 2124 3356 cmd.exe 80 PID 3356 wrote to memory of 2124 3356 cmd.exe 80
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\inv_9386.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Windows\explorer.exeexplorer C:\Windows\System32\cmd.exe2⤵
- Process spawned unexpected child process
PID:2676
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Suspicious use of WriteProcessMemory
PID:2612 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3356 -
C:\Windows\system32\reg.exereg query HKCU\Software\Microsoft\Office\16.0\Excel\Security /v VBAWarnings3⤵
- Modifies registry key
PID:2124
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