Analysis
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max time kernel
140s -
max time network
140s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
15-03-2021 17:10
Behavioral task
behavioral1
Sample
document-1451616459.xls
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1451616459.xls
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
document-1451616459.xls
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Size
138KB
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MD5
08d201c4489b47be625a3a230640dc20
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SHA1
3f5264afa4b50968224a4c5a9e3d8a27a7fbb77b
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SHA256
01c0663e41e4673d1609d753a854b37d53c4c9d533dad979ed86dcb26b82a4b2
-
SHA512
f65b65e640b8b2aec289dc38c8c96b251ae552c40743638b381ad676a0e36928fd9501328d1bf457025d3234df3793b9ac1eee41db0e4346e2eddaab7a555706
Score
10/10
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 212 1456 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1456 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 20 IoCs
Processes:
EXCEL.EXEpid process 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE 1456 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1456 wrote to memory of 212 1456 EXCEL.EXE rundll32.exe PID 1456 wrote to memory of 212 1456 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\document-1451616459.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1456 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\zfbfg.ere,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:212