Analysis
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max time kernel
136s -
max time network
130s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
08-03-2021 17:57
Behavioral task
behavioral1
Sample
db51470283d68b4eb4bcaa7ec2479a06d41503cd5862214f97e4f394748b36c3.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
db51470283d68b4eb4bcaa7ec2479a06d41503cd5862214f97e4f394748b36c3.xls
Resource
win10v20201028
General
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Target
db51470283d68b4eb4bcaa7ec2479a06d41503cd5862214f97e4f394748b36c3.xls
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Size
39KB
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MD5
9ef3b3a010179316440db44abbd34e90
-
SHA1
a5419ce2f80ce760bdf4a7bddd65df4a8a917123
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SHA256
db51470283d68b4eb4bcaa7ec2479a06d41503cd5862214f97e4f394748b36c3
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SHA512
89f2379072f6f049e3affa1858d745313a1a438cffe9d47489d55731f9004c921e5b0c44da0f2bbc1f9c49424e8cc4dac44cec65603c0fe059ff32a58298ee41
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 3176 4684 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 4684 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 4684 EXCEL.EXE 4684 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE 4684 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 4684 wrote to memory of 3176 4684 EXCEL.EXE rundll32.exe PID 4684 wrote to memory of 3176 4684 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\db51470283d68b4eb4bcaa7ec2479a06d41503cd5862214f97e4f394748b36c3.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:4684 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\fkruf.djr,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3176
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/3176-7-0x0000000000000000-mapping.dmp
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memory/4684-2-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmpFilesize
64KB
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memory/4684-3-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmpFilesize
64KB
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memory/4684-4-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmpFilesize
64KB
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memory/4684-5-0x00007FFEEB2F0000-0x00007FFEEB927000-memory.dmpFilesize
6.2MB
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memory/4684-6-0x00007FFEC57A0000-0x00007FFEC57B0000-memory.dmpFilesize
64KB