Analysis
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max time kernel
144s -
max time network
138s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-11-2020 20:55
Static task
static1
Behavioral task
behavioral1
Sample
faktura_18.xlsm
Resource
win7v20201028
Behavioral task
behavioral2
Sample
faktura_18.xlsm
Resource
win10v20201028
General
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Target
faktura_18.xlsm
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Size
95KB
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MD5
69f269d0a5e726c0bcafa1e81a456f79
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SHA1
a6537a821e059c4d10f9c35f0135e3af0227c9e9
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SHA256
3ad4819cec95571fba65855ebde66a308472c22a4c06501bfa1b1d51730572cc
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SHA512
72a229fa07b9d71cca6b120f7f2cf57b23c535d4bafe4b5bb65e9e0202e822ebfd7a54405e8b60c0514728f3c7815513049a049e1bde7ed02637e3c5e44dd1c9
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2764 3940 rundll32.exe EXCEL.EXE -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
EXCEL.EXEdescription ioc process File opened (read-only) \??\J: EXCEL.EXE File opened (read-only) \??\O: EXCEL.EXE File opened (read-only) \??\S: EXCEL.EXE File opened (read-only) \??\V: EXCEL.EXE File opened (read-only) \??\W: EXCEL.EXE File opened (read-only) \??\E: EXCEL.EXE File opened (read-only) \??\G: EXCEL.EXE File opened (read-only) \??\Q: EXCEL.EXE File opened (read-only) \??\X: EXCEL.EXE File opened (read-only) \??\Y: EXCEL.EXE File opened (read-only) \??\H: EXCEL.EXE File opened (read-only) \??\P: EXCEL.EXE File opened (read-only) \??\M: EXCEL.EXE File opened (read-only) \??\N: EXCEL.EXE File opened (read-only) \??\R: EXCEL.EXE File opened (read-only) \??\U: EXCEL.EXE File opened (read-only) \??\A: EXCEL.EXE File opened (read-only) \??\B: EXCEL.EXE File opened (read-only) \??\K: EXCEL.EXE File opened (read-only) \??\L: EXCEL.EXE File opened (read-only) \??\T: EXCEL.EXE File opened (read-only) \??\Z: EXCEL.EXE File opened (read-only) \??\F: EXCEL.EXE File opened (read-only) \??\I: 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 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
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 3940 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 3940 wrote to memory of 2764 3940 EXCEL.EXE rundll32.exe PID 3940 wrote to memory of 2764 3940 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\faktura_18.xlsm"1⤵
- Enumerates connected drives
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3940 -
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\HFKhnuZ\mlCGIzZ\uOUcRwG.dll,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2764
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