Analysis
- max time kernel
150s - max time network
79s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
09/06/2026, 00:28
General
- Target tmpbk7k5fin.exe
- Size 160KB
- Sample260609-asebysas2k
- SHA256 ac2787c4dd83f872810f4cfbf188efbf1b974a9bc97a13b7a5271424de5622e5
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 UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmpbk7k5fin.exe"C:\Users\Admin\AppData\Local\Temp\tmpbk7k5fin.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 3740 -s 3804⤵
- Program crash
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-
-
C:\Users\Admin\AppData\Roaming\D925A3B5\bin.exeC:\Users\Admin\AppData\Roaming\D925A3B5\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3740 -ip 37401⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
bin.exe
memory/1964-1-0x0000000000570000-0x0000000000571000-memory.dmp
memory/1964-0-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1964-9-0x00000000022B0000-0x0000000002CB0000-memory.dmp
memory/1964-4-0x00000000022B0000-0x0000000002CB0000-memory.dmp
memory/1964-8-0x0000000000400000-0x0000000000428000-memory.dmp
memory/2652-26-0x0000000000A30000-0x0000000000A36000-memory.dmp
memory/3172-15-0x00007FFC2C660000-0x00007FFC2C661000-memory.dmp
memory/3172-6-0x00007FFC2C4E3000-0x00007FFC2C4E4000-memory.dmp
memory/3172-2-0x0000000002C70000-0x0000000002C76000-memory.dmp
memory/3172-3-0x0000000002C70000-0x0000000002C76000-memory.dmp
memory/3172-12-0x0000000002C10000-0x0000000002C11000-memory.dmp
memory/3172-13-0x00007FFC2C650000-0x00007FFC2C651000-memory.dmp
memory/3212-20-0x00007FFC2C440000-0x00007FFC2C649000-memory.dmp
memory/3212-28-0x00007FFC2C440000-0x00007FFC2C649000-memory.dmp
memory/3740-11-0x00000000009B0000-0x00000000009B6000-memory.dmp
memory/3740-7-0x00007FFC2C440000-0x00007FFC2C649000-memory.dmp
memory/3740-5-0x0000000077614000-0x0000000077615000-memory.dmp
memory/3740-30-0x00000000009B0000-0x00000000009B6000-memory.dmp
memory/4920-21-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4920-22-0x00007FFC2C440000-0x00007FFC2C649000-memory.dmp
memory/4920-23-0x00000000001C0000-0x00000000001C6000-memory.dmp