Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
22/05/2026, 12:25
General
- Target tmpbd31vdhi.exe
- Size 110KB
- Sample260522-plkmqaaz4n
- SHA256 3d31b34ad1ae466cb169d16c8fe3d4a0f3291aa58222adc35cd74460cb99630a
Malware Config
Signatures
- Family: Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tmpbd31vdhi.exe"C:\Users\Admin\AppData\Local\Temp\tmpbd31vdhi.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\winver.exewinver3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 3804⤵
- Program crash
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-
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C:\Users\Admin\AppData\Roaming\4E7374D3\bin.exeC:\Users\Admin\AppData\Roaming\4E7374D3\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3892 -ip 38921⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
bin.exe
memory/2668-35-0x00007FFC557F0000-0x00007FFC557F1000-memory.dmp
memory/2668-28-0x0000000000870000-0x0000000000876000-memory.dmp
memory/3192-14-0x00007FFC557E0000-0x00007FFC557E1000-memory.dmp
memory/3192-8-0x00007FFC55663000-0x00007FFC55664000-memory.dmp
memory/3192-7-0x0000000002760000-0x0000000002766000-memory.dmp
memory/3192-33-0x00007FFC55800000-0x00007FFC55801000-memory.dmp
memory/3192-32-0x00007FFC557F0000-0x00007FFC557F1000-memory.dmp
memory/3192-12-0x00000000025A0000-0x00000000025A1000-memory.dmp
memory/3192-13-0x00007FFC557D0000-0x00007FFC557D1000-memory.dmp
memory/3216-19-0x00007FFC555C0000-0x00007FFC557C9000-memory.dmp
memory/3216-21-0x00007FFC555C0000-0x00007FFC557C9000-memory.dmp
memory/3216-29-0x00007FFC555C0000-0x00007FFC557C9000-memory.dmp
memory/3892-3-0x00000000013F0000-0x00000000013F6000-memory.dmp
memory/3892-31-0x00000000013F0000-0x00000000013F6000-memory.dmp
memory/3892-11-0x00000000013F0000-0x00000000013F6000-memory.dmp
memory/3892-5-0x00000000776A4000-0x00000000776A5000-memory.dmp
memory/3988-0-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3988-2-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3988-1-0x0000000000407000-0x0000000000408000-memory.dmp
memory/5088-20-0x0000000000400000-0x000000000041E000-memory.dmp
memory/5088-23-0x00007FFC555C0000-0x00007FFC557C9000-memory.dmp
memory/5088-24-0x00000000001C0000-0x00000000001C6000-memory.dmp