Analysis
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max time kernel
139s -
max time network
139s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
15-03-2021 19:46
Behavioral task
behavioral1
Sample
document-1480960875.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
document-1480960875.xls
Resource
win10v20201028
General
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Target
document-1480960875.xls
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Size
139KB
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MD5
0b7470c0fd179a46a521e4925be13504
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SHA1
f209f195ebe3876e253e08769ca87524458efdf3
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SHA256
232c3f673c0f228da3ff70ce545ff12601d20d05ce581b3df30a0c741d5b2398
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SHA512
2459d051d2421292b636a05e9fdf17ae78bb53f945004b411709a100dcbcc3c9775bdd4badcf84053fb5f2885970b4e071da803c8a14cfceacb7c13b745cfc1c
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 3888 576 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 576 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 576 wrote to memory of 3888 576 EXCEL.EXE rundll32.exe PID 576 wrote to memory of 3888 576 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-1480960875.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\zfbfg.ere,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/576-2-0x00007FFE76A80000-0x00007FFE76A90000-memory.dmpFilesize
64KB
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memory/576-3-0x00007FFE76A80000-0x00007FFE76A90000-memory.dmpFilesize
64KB
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memory/576-4-0x00007FFE76A80000-0x00007FFE76A90000-memory.dmpFilesize
64KB
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memory/576-5-0x00007FFE76A80000-0x00007FFE76A90000-memory.dmpFilesize
64KB
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memory/576-6-0x00007FFE99A90000-0x00007FFE9A0C7000-memory.dmpFilesize
6.2MB
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memory/3888-7-0x0000000000000000-mapping.dmp