Analysis
- max time kernel
78s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
22/04/2022, 15:21
General
- Target Türkiye İş Bankası swift Bildirimi_xls.exe
- Size 548KB
- Sample220422-srbtjsdcg6
- SHA256 88b3d6137dab7366119bd7c0e1939d2b63a5e7eb54f41fc443d6d9ea7e6d2113
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Türkiye İş Bankası swift Bildirimi_xls.exe"C:\Users\Admin\AppData\Local\Temp\Türkiye İş Bankası swift Bildirimi_xls.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Türkiye İş Bankası swift Bildirimi_xls.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pUnFvPVmwxouQj.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pUnFvPVmwxouQj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8146.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 16962⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2252 -ip 22521⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
tmp8146.tmp
memory/2252-131-0x0000000005160000-0x0000000005704000-memory.dmp
memory/2252-132-0x0000000004C50000-0x0000000004CE2000-memory.dmp
memory/2252-133-0x0000000004D90000-0x0000000004E2C000-memory.dmp
memory/2252-134-0x0000000004C40000-0x0000000004C4A000-memory.dmp
memory/2252-135-0x0000000008730000-0x0000000008796000-memory.dmp
memory/2252-130-0x00000000001F0000-0x0000000000280000-memory.dmp
memory/3660-151-0x0000000007AD0000-0x0000000007ADA000-memory.dmp
memory/3660-138-0x0000000002E70000-0x0000000002EA6000-memory.dmp
memory/3660-155-0x0000000007D80000-0x0000000007D88000-memory.dmp
memory/3660-144-0x0000000006750000-0x000000000676E000-memory.dmp
memory/3660-154-0x0000000007DA0000-0x0000000007DBA000-memory.dmp
memory/3660-146-0x000000006F460000-0x000000006F4AC000-memory.dmp
memory/3660-152-0x0000000007CE0000-0x0000000007D76000-memory.dmp
memory/3660-147-0x0000000006D00000-0x0000000006D1E000-memory.dmp
memory/3660-149-0x00000000080A0000-0x000000000871A000-memory.dmp
memory/4848-145-0x0000000007800000-0x0000000007832000-memory.dmp
memory/4848-150-0x0000000007970000-0x000000000798A000-memory.dmp
memory/4848-148-0x000000006F460000-0x000000006F4AC000-memory.dmp
memory/4848-153-0x0000000007BA0000-0x0000000007BAE000-memory.dmp
memory/4848-140-0x0000000005780000-0x0000000005DA8000-memory.dmp
memory/4848-143-0x0000000005F80000-0x0000000005FE6000-memory.dmp
memory/4848-142-0x0000000005EE0000-0x0000000005F02000-memory.dmp