Analysis
- max time kernel
138s - max time network
137s - platform
windows10_x64 - resource
win10v20201028 - submitted
26/02/2021, 21:13
Static task
static1
Behavioral task
behavioral1
Sample
7.xlsb
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
7.xlsb
Resource
win10v20201028
0 signatures
0 seconds
General
- Target 7.xlsb
- Size 81KB
- Sample210226-ldtkfcxymj
- SHA256 977e9ab4d104d4084a4b13ca30086b332849c7e2cec0cf1d375dc5a3565a931d
- MD5 aa61ea06018203f7e5bf93dd8d6e6286
- SHA1 36331f5d14b5a612e06e1381a39c6b5309e1a7ee
- SHA512 3f8574a5ddfa7019bfec4cb76814d9d44a6b484f8ba0e636be599d94a16965fb2c97d4bd0bfbc574c1265e0f9057a1b483f39feea37520867f764f12782e4e11
- 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 2340 3976 rundll32.exe 67 - 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3976 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE 3976 EXCEL.EXE - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3976 wrote to memory of 2340 3976 EXCEL.EXE 81 PID 3976 wrote to memory of 2340 3976 EXCEL.EXE 81
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\7.xlsb"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3976 -
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\ProgramData\qoqw\1540.dll,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2340
-