Analysis
-
max time kernel
136s -
max time network
129s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
12-03-2021 19:48
Behavioral task
behavioral1
Sample
document-196434727.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
document-196434727.xls
Resource
win10v20201028
General
-
Target
document-196434727.xls
-
Size
138KB
-
MD5
c298be4395bc3a28f4000a527b708fba
-
SHA1
93a2a64376c569875f51cbbb45ddca500e18f8ea
-
SHA256
3dc9c02c0dfa3f57f565690ad505d95098419b094d7f5edf14509e3ddcc20762
-
SHA512
463f82297189b00ca83539b49b50005c7ddf0dc80b2f590121fe299b1cf899275d860f76d832024758e1fa5bf1c20b61d5346b0854fc3dca0287c80f019283b5
Malware Config
Signatures
-
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 3760 3008 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 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 3008 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 3008 EXCEL.EXE 3008 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE 3008 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 3008 wrote to memory of 3760 3008 EXCEL.EXE rundll32.exe PID 3008 wrote to memory of 3760 3008 EXCEL.EXE rundll32.exe
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\document-196434727.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3008 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\zfbfg.ere,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3760
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/3008-2-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmpFilesize
64KB
-
memory/3008-3-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmpFilesize
64KB
-
memory/3008-4-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmpFilesize
64KB
-
memory/3008-5-0x00007FF81E2D0000-0x00007FF81E907000-memory.dmpFilesize
6.2MB
-
memory/3008-6-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmpFilesize
64KB
-
memory/3760-7-0x0000000000000000-mapping.dmp