Analysis
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max time kernel
140s -
max time network
139s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
12-03-2021 19:54
Behavioral task
behavioral1
Sample
document-2061627660.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
document-2061627660.xls
Resource
win10v20201028
General
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Target
document-2061627660.xls
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Size
138KB
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MD5
94c6010b894bdecb41a46a1a4e30787c
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SHA1
04bdee48efcf8904565a06e6fc2647b6ee2b14c8
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SHA256
f03836c1f8acdc207e8c3e76a4ba85cffc2979035dc6eb826110160ef8fc9634
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SHA512
97513d9659f844ed477443578fc6901a392a23b67b63ffd82b1e55897f34c80d71863894f2e41f671aa6b3edf1fcb77d456bee2bc803e8308e4898872b18c6e5
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 68 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 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 1456 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 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 -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1456 wrote to memory of 68 1456 EXCEL.EXE rundll32.exe PID 1456 wrote to memory of 68 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-2061627660.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:68
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/68-7-0x0000000000000000-mapping.dmp
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memory/1456-2-0x00007FFB33400000-0x00007FFB33410000-memory.dmpFilesize
64KB
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memory/1456-3-0x00007FFB33400000-0x00007FFB33410000-memory.dmpFilesize
64KB
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memory/1456-4-0x00007FFB33400000-0x00007FFB33410000-memory.dmpFilesize
64KB
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memory/1456-5-0x00007FFB568F0000-0x00007FFB56F27000-memory.dmpFilesize
6.2MB
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memory/1456-6-0x00007FFB33400000-0x00007FFB33410000-memory.dmpFilesize
64KB